GA Exam 2

Which of the following muscles belong to the superficial layer of the posterior compartment of the forearm? a. Triceps brachii b. Brachioradialis c. Supinator d. Extensor indicis e. C and D

b. Brachioradialis

Which structure/s are responsible for innervation of the thenar eminence? a. Ulnar nerve, Radial Nerve b. Median Nerve, Ulnar Nerve c. Radial Nerve d. Radial Nerve, Median Nerve

b. Median Nerve, Ulnar Nerve

How many extensor tunnels are in the wrist? a. 4 b. 3 c. 6 d. 8

c. 6

Which of the following muscles does the ulnar n. innervate? a. Flexor Digitorum Superficialis b. Flexor Carpi Radialis c. Flexor Digitorum Profundus - Medial Half d. Flexor Digitorum Profundus - Lateral Half

c. Flexor Digitorum Profundus - Medial Half

Pectoralis minor inserts on to: a. Coracoid Process b. Acromion c. Lesser tuberosity of humerus d. Bicipital groove

a. Coracoid Process

Which of the following movements should still occur with a C5 spinal cord lesion? a. Scapular Elevation b. Glenohumeral Abduction c. Scapular Protraction d. Glenohumeral External Rotation

a. Scapular Elevation

If your patient has weakness in scapular retraction, which is the most likely site of lesion? a. C5 b. C6 c. Upper Trunk d. Middle Trunk

a. C5

Inflammation of the Triangular Space could compress the ______? a. Circumflex Scapular A. b. Radial N. c. Posterior Humeral Circumflex A. d. Axillary N.

a. Circumflex Scapular A.

Infraspinatus inserts on to: a. Superior aspect of the greater tuberosity of the humerus b. Posterior aspect of the greater tuberosity of the humerus c. Inferior aspect of the lesser tuberosity of the humerus d. Anterior aspect of the lesser tuberosity of the humerus

b. Posterior aspect of the greater tuberosity of the humerus

Which of the following muscles is innervated by the median n? a. Flexor Carpi Ulnaris b. Pronator Quadratus c. Brachioradialis d. 3rd Lumbrical

b. Pronator Quadratus

Which area does the ulnar n. provide cutaneous innervation to? a. Lateral one and a half fingers b. Medial one and a half fingers c. Anterior Forearm d. Posterior Forearm

b. Medial one and a half fingers

Pronator quadratus is innervated by which nerve? a. Radial b. Median c. Musculocutaneous d. Ulnar

b. Median

Which of the following nerves travels in the Carpal Tunnel? a. Ulnar N. b. Median N. c. Radial N. d. Deep Radial N.

b. Median N.

Damage to which of the following nerves would have the greatest affect on elbow flexion? a. Ulnar b. Musculocutaneous c. Radial d. Median

b. Musculocutaneous

A patient suffered severe damage to the third part of the Axillary artery. Which of the following findings could be true? a. Total loss of movement of the biceps brachi b. Possible avascular necrosis at the neck and head of the humerus c. Decreased blood supply to the Superior (supreme) thoracic artery d. Decreased blood supply to the Lateral pectoral artery

b. Possible avascular necrosis at the neck and head of the humerus

A lesion of the lateral cord would result in which of the following? a. Weakness in extension of the fingers b. Weakness in supination of the forearm c. Change in sensation on the palm of the little finger d. Change in sensation on the medial arm

b. Weakness in supination of the forearm

Your patient complains of a decrease in grip strength and a decrease in sensation along the palmar surface of the index and middle fingers. Where is the lesion most likely to be located? a. Middle Trunk b. Median Nerve at wrist c. Median Nerve at elbow d. Medial Cord

c. Median Nerve at elbow

A patient suffers damage to the C5 root of the brachial plexus. Which of the following dysfunctions could you encounter? a. Decreased ability to retract the scapula b. Decreased ability to protract the scapula c. Winging of the scapula d. Decrease ability to abduct the shoulder e. All of the above

e. all of the above

Which of the following structures are part of the infraclavicular division of the brachial plexus? a. Medial pectoral nerve b. Medial cord c. Median nerve d. Lateral cord e. None of the above f. A-D are correct

f. A-D are correct

Subscapularis inserts on to which aspect of the shoulder capsule? a. Anterior b. Lateral c. Posterior d. Inferior

a. Anterior

What's the innervation of the 1st and 2nd lumbricals? a. Median nerve b. Median and radial nerves c. Ulnar nerve d. Deep branch of the ulnar nerve

a. Median nerve

Which of the following muscles would be involved with a lesion of the medial cord? a. Pectoralis Minor b. Deltoid c. Latissimus Dorsi D. Subscapularis

a. Pectoralis Minor

The PAD and DAB acronyms are helpful to elucidate which are the adductors and which are the abductors of the fingers. A patient with inability to adduct and abduct the fingers presents with: a. Median nerve damage at the elbow b. Ulnar nerve damage at the anterior mid aspect of the forearm c. Damage to the deep branch of the median nerve d. Damage to the recurrent branch of the median nerve

b. Ulnar nerve damage at the anterior mid aspect of the forearm

How many structures pass in the Carpal Tunnel? a. 8 b. 12 c. 9 d. 10

d. 10

Which of the dorsal interosseous muscles would not have its vascular supply affected if there was damage to the dorsal carpal anastomosis? a. 4th b. 3rd c. 2nd d. 1st

d. 1st

The anterior division of the brachial plexus provides fibers to Lateral and Medial cords. Damage to the Posterior fibers of the division part of the brachial plexus could result in: a. Difficulty abducting the arm b. Weakness of the triceps muscles c. Weakness of the biceps brachii d. A and B

d. A and B

The median nerve innervates some of the lumbricals. Which of the following is true: a. Damage to the ulnar nerve will result in decreased function of the 3rd and 4th lumbricals b. Damage to the ulnar nerve will result in decreased function of the 1st and 2nd lumbricals c. Damage to the median nerve will result in decreased function of the 1st and 2nd lumbricals d. A and C

d. A and C

T or F The 2nd and 3rd Palmar Interossei can be classified as unipennate muscles

T

T or F The extensor retinaculum sits on the dorsal side of the wrist.

T

Tenderness in the anterior glenohumeral joint and pain with resisted internal glenohumeral rotation would suggest inflammation of: a. Subscapular bursa b. Subclavicular bursa c. Subacromial bursa d. Subdeltoid bursa

a. Subscapular bursa

Which of the following structures travel in the Guyon's Tunnel? a. Ulnar N. b. Median N. c. Anterior Interosseous N. d. Radial N.

a. Ulnar N.

If C7 is damaged which of the following sensations would be decreased? a. Decreased sensation in index finger and thumb b. Decreased sensation in middle finger c. Decreased sensation in lateral arm d. Decreased sensation in medial arm

b. Decreased sensation in middle finger

Which of the following nerves would be affected due to tightness from Lateral Epicondylitis? a. Deep Ulnar N. b. Deep Radial N. c. Recurrent Branch of Median N. d. Anterior Interosseous N.

b. Deep Radial N.

Which of the following movements should be weakest with a C7 spinal cord injury? a. Scapular Retraction b. Elbow Flexion c. Glenohumeral Abduction d. Glenohumeral External Rotation

b. Elbow Flexion

Which landmark marks the location where the subclavian artery becomes the axillary artery? a. Clavicle b. First rib c. Inferior border of teres major d. Lateral border of pectoralis minor

b. First rib

If your patient had weakness in elbow flexion, where is the most likely site of the lesion? a. Posterior Cord b. Lateral Cord c. Inferior Trunk d. C8 Spinal Nerve

b. Lateral Cord

A person who does repeated forceful pronation and finger flexion may experience? a. Pain in their pronator quadratus b. Medial Epicondylitis c. DeQuervains Tenosynovitis d. Lateral Epicondylitis

b. Medial Epicondylitis

Which of the following movements would be least affected with a C6 spinal nerve lesion? a. Scapular protraction b. Scapular retraction c. Glenohumeral abduction d. Glenohumeral external rotation

b. Scapular retraction

The second part of the axillary artery contains the thoraco-acromial and lateral thoracic arteries. Which of the following muscles receive blood supply from the lateral thoracic artery? a. Pectoral musculature b. Serratus anterior m. c. Intercostal muscles d. A, B and C

b. Serratus anterior m.

Which of the following does NOT flex the shoulder? a. Pectoralis major b. Supraspinatus c. Coracobrachialis d. Biceps Brachii

b. Supraspinatus

Which of the following is NOT a muscle of the rotator cuff? a. Subscapularis b. Teres Major c. Supraspinatus d. Infraspinatus

b. Teres Major

A patient arrives at the clinic with weakness in the Latissimus dorsi. You suspect: a. Axillary nerve damage b. Thoracodorsal nerve injury c. Posterior root involvement d. Long thoracic nerve damage e. C5 root damage

b. Thoracodorsal nerve injury

A 24-year-old man was involved in an accident and the radiograph reveals a fracture of the medial epicondyle of his right humerus. He complains about the loss of sensation in the area of his little finger. Which of the following nerves is injured? a. Median N. b. Ulnar N. c. Radial N. d. Axillary N.

b. Ulnar N.

Your patient has weakness in finger extension but no weakness in the wrist extensors. Where is the lesion most likely to be located? a. Radial nerve at the elbow b. Ulnar nerve at the wrist c. Posterior cord d. Upper trunk

b. Ulnar nerve at the wrist

Which of the following structures does not travel in the Carpal Tunnel? a. Median N. b. Flexor Pollicis Longus c. Abductor Pollicis Longus d. Flexor Digitorum Profundus

c. Abductor Pollicis Longus

Hypothenar muscles include: a. Opponens pollicis b. Abductor pollicis brevis c. Abductor digiti minimi d. Flexor pollicis brevis

c. Abductor digiti minimi

Which group of muscles does the Musculocutaneous N innervate? a. Anterior Forearm b. Posterior Forearm c. Anterior Arm d. Posterior Arm

c. Anterior Arm

Which of the following is a glenoid rim fracture, usually due to a subluxation or partial dislocation? a. SLAP Lesion b. Anterior Glenohumeral Instability c. Bankart Lesion d. Hill-Sachs Lesion

c. Bankart Lesion

Your patient has weak wrist flexion, diminished triceps reflex, and decreased sensation of the middle finger. Which nerve is the most likely influencing this presentation? a. C5 b. C8 c. C7 d. C6

c. C7

Which are muscles of deep layer of the anterior compartment of the forearm? a. Palmaris longus, flexor digitorum superficialis b. Flexor digitorum profundus and flexor digitorum superficialis c. Flexor pollicis longus and flexor digitorum profundus d. Flexor carpi radialis longus and pronator quadratus

c. Flexor pollicis longus and flexor digitorum profundus

Which of the following movements would most likely be weak with a lesion of the lateral cord? a. Glenhumeral external rotation b. Glenohumeral abduction c. Glenohumeral flexion d. Glenohumeral extension

c. Glenohumeral flexion

Which artery is typically a direct branch of the axillary artery? a. Circumflex Scapular b. Dorsal Scapular c. Lateral Thoracic d. Suprascapular e. Thoracodorsal

c. Lateral Thoracic

Scapular winging could possibly indicate an injury to which nerve? a. Dorsal Scapular N. b. Musculocutaneous N. c. Long Thoracic N. d. Suprascapular N.

c. Long Thoracic N.

Guyon's Tunnel runs lateral to which of the following wrist bones? a. Hammate b. Triquetrum c. Pisiform d. Trapezoid

c. Pisiform

Which vessel accompanies the axillary n as it passes through the quadrangular space? a. Brachial A. b. Anterior Circumflex A. c. Posterior Circumflex A. d. Axillary A.

c. Posterior Circumflex A.

Which nerve is the largest branch of the brachial plexus and originates from the posterior cord, from where it runs behind the axillary and brachial artery in order to reach the forearm by passing the lateral epicondyle of the humerus? a. Median N. b. Ulnar N. c. Radial N. d. Axillary N.

c. Radial N.

All of the following movements would most likely be weak with a lesion of the radial nerve in the upper arm except: a. Forearm Supination b. Thumb Abduction c. Thumb Adduction d. Little Finger Extension

c. Thumb Adduction

Which of the following movements would be most likely be weak with a median nerve lesion at the wrist? a. Wrist Flexion b. Finger Flexion c. Thumb Opposition d. Abduction of the index finger

c. Thumb Opposition

A person with Lateral Epicondylitis will have all of the following movements affected except: a. Supination b. Radial Deviation c. Ulnar Deviation d. Wrist Extension

c. Ulnar Deviation

Movements at the glenohumeral joint and elbow are least affected when the spinal cord lesion is at which of the following levels? a. C5 b. C6 c. C7 d. C8

d. C8

Sensation to the hand is least affected when the spinal cord lesion is at which of the following levels? a. C5 b. C6 c. C7 d. C8

d. C8

Which of the following pairs is not an extension tunnel? a. Abductor Pollicis Longus & Extensor Pollicis Brevis b. Extensor Carpi Radialis Longus & Extensor Carpi Radialis Brevis c. Extensor Digitorum & Extensor Indicis d. Extensor Digiti Minimi & Extensor Carpi Ulnaris

d. Extensor Digiti Minimi & Extensor Carpi Ulnaris

Which of the following movements would most likely NOT be weak with an ulnar nerve lesion at the wrist? a. Extension of the little and ring fingers b. Opposition of the little finger c. Adduction of the thumb d. Flexion of the DIP of the index finger

d. Flexion of the DIP of the index finger

What are the boundaries of the third part of the Axillary artery? a. The medial border of the first rib and medial border of the pec minor b. The lateral border of the pectoralis minor and superior border of teres major c. Lateral border of pectoralis minor and inferior border of teres minor d. Lateral border of pectoralis minor and inferior border of teres major

d. Lateral border of pectoralis minor and inferior border of teres major

Weakness in glenohumeral internal rotation could occur with all of the following lesion except: a. Posterior Cord b. Lateral Cord c. Superior Trunk d. Radial Nerve

d. Radial Nerve

Which of the following muscles would be involved with a C7 spinal nerve lesion? a. Rhomboid Major b. Supraspinatus c. Infraspinatus d. Serratus Anterior

d. Serratus Anterior

Which of the following muscles does NOT insert onto the greater tuberosity of the humerus? a. Supraspinatus b. Infraspinatus c. Teres Minor d. Subscapularis

d. Subscapularis

Which of the following muscles externally rotates the shoulder? a. Latissimus Dorsi b. Pectoralis Major c. Coracobrachialis d. Teres Minor

d. Teres Minor

The arterial supply of the digits of the hand are supplied by the common palmar arteries and the proper palmar digital arteries. What's the origin of the common palmar arteries? a. The Ulnar artery b. The Radial artery c. The Deep palmar arch d. The Superficial palmar arch

d. The Superficial palmar arch

A patient presents with muscle wasting at the hypothenar eminence. The therapist suspects: a. Severe damage to the posterior cord of the brachial plexus b. Damage to the lateral cord c. Damage to the medial cord d. Damage to the radial nerve

c. Damage to the medial cord

The supinator and the extensor indicis share a commonality: (Select all that applies) a. Both are innervated by the median nerve and ulnar nerve b. Both are innervated by the deep branch of the radial nerve c. Both are extensors of the wrist d. Both are in the deep layer of the extensor compartment of the forearm

b. Both are innervated by the deep branch of the radial nerve d. Both are in the deep layer of the extensor compartment of the forearm

Your patient states that following a fall with her arm overhead she is having difficulty moving her fingers side to side. Upon examination you test the strength of her finger abduction/adduction. You suspect: a. Damage to the deep branch of the median nerve b. Damage to the deep branch of the ulnar nerve c. Damage to the deep branch of the radial nerve d. A and C

b. Damage to the deep branch of the ulnar nerve

What's the innervation of the Extensor digiti minimi? a. Superficial branch of the radial nerve b. Deep branch of the radial nerve c. Posterior interosseus nerve arising from the deep branch of the radial nerve d. Axillary nerve

b. Deep branch of the radial nerve

The common extensor tendon is the area where some extensors of the hand/wrist arise from. Which of the following muscles proximal attachment is the common extensor tendon? (Select all that apply) a. Extensor carpi radialis longus b. Extensor carpi ulnaris c. Extensor indicis d. Extensor digitorum

b. Extensor carpi ulnaris c. Extensor indicis d. Extensor digitorum

Which tendon forms the medial border of the anatomical snuffbox? a. Abductor pollicis longus b. Extensor pollicis longus c. Flexor digitorum superficialis d. Superficial flexor retinaculum

b. Extensor pollicis longus

A therapist is performing muscle strength at the hand/fingers of her patient. She notices that the patient has difficulty opposing and adducting the thumb. What's the most probable cause of this deficit? a. Injury of the deep branch of the ulnar nerve b. Injury of the recurrent branch of the median nerve c. Injury at the most distal end of the medial-anterior aspect of the wrist d. Injury to the deep branch of the radial nerve

b. Injury of the recurrent branch of the median nerve

The brachial artery is a direct continuation of the axillary artery. Which of the following is true about the axillary artery? a. Its most distal border is the inferior border of the teres minor b. It contains six major branches c. Damage to its first part may result in necrosis of the head of the humerus d. One of the borders of the second part is the medial border of the teres major

b. It contains six major branches

What's true about the deep palmar arch? a. It is proximal in relation to the wrist b. It is distal in relation to the wrist c. It gives rise to the common palmar digital arteries d. A and C

b. It is distal in relation to the wrist

What's true about the Brachial artery? a. It's a direct continuation of the Subclavian a. b. It's a direct continuation of the Axillary a. c. It is divided in three parts d. B and C

b. It's a direct continuation of the Axillary a.

Which of the following is true regarding the supinator muscle? (Select all that applies) a. It's an anterior compartment muscle b. It's a posterior compartment muscle c. It's innervated by the radial nerve d. It's located distally in the forearm

b. It's a posterior compartment muscle c. It's innervated by the radial nerve

What's true about the anterior compartment of the forearm? a. It's fully innervated by the median nerve and the anterior interosseus b. It's partially innervated by the median nerve c. Two entire muscles are innervated by the ulnar nerve

b. It's partially innervated by the median nerve

Which of the following arteries is a branch of the second part of the axillary artery? a. Subscapular a. b. Lateral thoracic a. c. Anterior circumflex a. d. Posterior circumflex a

b. Lateral thoracic a.

Which of the following structures are located in the anterior compartment of the arm? a. Triceps brachi b. Long head of the biceps brachii c. Short head of the Triceps d. Pronator teres muscle

b. Long head of the biceps brachii

The Teres major inserts on to the...? a. Lateral lip of the bicipital groove b. Medial lip of the bicipital groove c. Bicipital groove d. Lesser tubercle

b. Medial lip of the bicipital groove

Abductor pollicis brevis is innervated by which nerve? a. Axillary b. Median c. Ulnar d. Radial

b. Median

A patient presents to the hospital with a deep laceration injury in the posterior aspect of the forearm. Upon examination the MD finds that the patient has difficulty extending the wrist and the index finger. Which of the following is true? a. There is damage to the flexor digitorum superficialis b. There is damage to the radial nerve c. There is damage to the flexor carpi radialis d. There is damage to the extensor digiti minimi e. C and D

b. There is damage to the radial nerve

In a clinical setting, how can the abductor pollicis brevis muscle be tested for strength? a. 2nd Digit flexion against resistance b. Thumb abduction against resistance c. Thumb adduction against resistance d. Thumb extension against resistance

b. Thumb abduction against resistance

Which of the following do not directly articulate with the hamate? a. 4th metacarpal bone b. Trapezium c. Capitate d. Lunate

b. Trapezium

Deltoid is innervated by which nerve? a. Thoracodorsal b. Subscapular c. Axillary d. Radial

c. Axillary

Which nerve innervates the deltoid? a. Long Thoracic N. b. Radial N. c. Axillary N. d. Accessory N.

c. Axillary N.

A patient suffers a neck injury resulting in numbness and weakness of one of the muscles responsible for ulnar deviation. What root levels were injured? a. C5, C6 b. C5-C7 c. C8-T1 d. C7 only

c. C8-T1

Which of the following muscles does NOT contribute to internal rotation of the shoulder? a. Teres Major b. Subscapularis c. Pectoralis Minor d. Latissimus Dorsi

c. Pectoralis Minor

Saturday night palsy may result from compression of the _____? a. Ulnar N. b. Median N. c. Radial N. d. Musculocutaneous N.

c. Radial N.

The dorsal scapular nerve arises from the anterior ramus of C5 and has some contribution from C4 (Moore's text). Which of the following muscles is/are innervated by the dorsal scapular nerve? a. Supraspinatus and infraspinatus muscles b. Serratus anterior and posterior c. Rhomboid major and Levator scapula d. Rhomboid minor and teres major

c. Rhomboid major and Levator scapula

The brachial plexus arises from 5 roots from C5 to T1. Which of the following structures may be affected if there is damage to the C6-C7 roots? a. Flexor digiti minimi brevis b. Adductor pollicis oblique head c. Serratus anterior d. Flexor digitorum profundus

c. Serratus anterior

Infraspinatus is innervated by which nerve? a. Axillary N. b. Long Thoracic N. c. Suprascapular N. d. Lower Subscapular N.

c. Suprascapular N.

What's the motor innervation to the supraspinatus muscle? a. Musculocutaneous n. b. Axillary n. c. Suprascapular n. d. Superior thoracic n.

c. Suprascapular n.

Which of the following muscles is innervated by the lower subscapular nerve? a. Supraspinatus b. Teres minor c. Teres major d. Deltoid

c. Teres major

What's the similarity between the flexor digitorum profundus and the lumbricals? a. Both are innervated by the ulnar and median nerves b. Both are flexors of the MCP joint and extensors of the IP joints c. Both are innervated by the median nerve only d. Both are adductor of the fingers including the thumb

a. Both are innervated by the ulnar and median nerves

The deep branch of the radial nerve, according to Moore, innervates: a. Brachioradialis m. b. Extensor carpi radialis longus m. c. Extensor digitorum d. Extensor carpi ulnaris e. C and D

a. C and D

Which of the following are branches of the Superficial palmar arch? a. Common palmar digital arteries b. Proper palmar digital arteries c. Radial artery d. Ulnar artery

a. Common palmar digital arteries

Damage to the third part of the axillary artery may result in: a. Decreased blood supply to the rhomboids b. Decreased blood supply to the Latissimus dorsi c. Compromised blood supply to the biceps brachii d. Compromised blood supply to the levator scapula

a. Decreased blood supply to the Latissimus dorsi

Which of the following correctly states the actions of teres major? a. Internal rotation and extension of the shoulder b. External rotation and flexion of the shoulder c. Flexion and adduction of the shoulder d. Extension and abduction of the shoulder

a. Internal rotation and extension of the shoulder

What best describes the deep palmar arch? (Select all that applies) a. It's a direct continuation of the radial artery b. It's a direct continuation of the ulnar artery c. It is distal to the superficial palmar arch d. It gives rise to the proper palmar digital arteries

a. It's a direct continuation of the radial artery d. It gives rise to the proper palmar digital arteries

A patient reports difficulty reaching forward to grab a can of soda from the counter (patient is standing up). What could be the most probable cause of this disfunction? a. Posterior cord injury b. Medial cord injury c. Biceps brachii paralysis d. Injury to the radial nerve just below the elbow

a. Posterior cord injury

Brachioradialis is innervated by which nerve? a. Radial b. Median c. Axillary d. Subscapular

a. Radial

The origin of the pectoralis minor is: a. Ribs 3-5 b. Ribs 1-2 c. Coracoid Process d. Subclavian groove

a. Ribs 3-5

Weakness in external rotation of the shoulder could be due to damage to the: a. Suprascapular N. b. Infrascapular N. c. C7 spinal nerve d. Subscapularis

a. Suprascapular N.

Opponens digiti minimi is innervated by which nerve? a. Ulnar b. Radial c. Median d. Axillary

a. Ulnar

Damaged to the second part of the axillary artery may result in: [mnemonic: Cadavers Are Dead People] = branches of the Thoracoacromial a. a. Muscle atrophy of the biceps brachii b. Decreased blood supply to the Latissimus dorsi c. Decreased blood supply to the Subclavius d. A and C

c. Decreased blood supply to the Subclavius

Hypothenar muscles are mostly innervated by: a. Superficial branch of the Ulnar nerve b. Deep branch of the Median nerve c. Deep branch of the Ulnar nerve d. Actually they're innervated by the Ulnar and Median nerves

c. Deep branch of the Ulnar nerve

Damage to the deep branch of the radial nerve (C7-C8) could result in which of the following deficits? a. Weak flexion of the elbow b. Weak extension of the elbow c. Difficulty extending medial four fingers at MCP joints d. Difficulty abducting the medial four fingers

c. Difficulty extending medial four fingers at MCP joints

The anterior interosseus nerve is a branch of the median nerve. Which of the following structures is(are) innervated by this branch? a. Flexor digitorum profundus medial part b. Flexor carpi ulnaris humeral head c. Flexor digitorum profundus lateral part d. Extensor digitorum m.

c. Flexor digitorum profundus lateral part

The deepest layer of the anterior compartment includes: a. Pronator teres and flexor carpi ulnaris b. Flexor digitorum profundus, flexor digitorum superficialis and pronator quadratus c. Flexor digitorum profundus, flexor policis longus and pronator quadratus d. Pronator quadratus, pronator teres and flexor policis longus

c. Flexor digitorum profundus, flexor policis longus and pronator quadratus

Which structure do the collateral ligaments attach to in the proximal interphalangeal joint? a. Volar Plate b. Lumbricals c. Head of Proximal Phalanx d. They are free floating structures which do not have an attachment point

c. Head of Proximal Phalanx

A patient presents with difficulty performing horizontal adduction of the shoulder. What's the most probable cause of this deficit? a. Injury to the posterior cord b. Injury to the median nerve c. Injury to the lateral and medial cords d. Injury to ulnar and median nerves because they arise from the medial and lateral cords

c. Injury to the lateral and medial cords

The Axillary artery is divided in three parts. Which of the following is true regarding the third part of the axillary artery? a. Its borders are the medial border of the pectoralis minor and the inferior border of the teres major b. Its borders are the lateral border of the pectoralis minor and the superior border of the teres major c. Its borders are the lateral border of the pectoralis minor and the inferior border of the teres major d. Its borders are the lateral border of the 1st rib and the inferior border of the teres minor

c. Its borders are the lateral border of the pectoralis minor and the inferior border of the teres major

Which of the following is not an accurate neurovascular bundle pairing? a. Axillary nerve and posterior circumflex humeral artery b. Median nerve and brachial artery c. Musculocutaneous nerve and circumflex scapular artery d. Radial nerve and deep brachial artery

c. Musculocutaneous nerve and circumflex scapular artery

Which structure is considered to be the most superficial? a. 5th metacarpal b. Adductor pollicis c. Palmar aponeurosis d. Midpalmar space

c. Palmar aponeurosis

The function of the lumbricals is to flex the MCP joints and extend the IP joints. Which of the following is true regarding the lumbricals? a. All are innervated by the median nerve because they are flexors b. All are innervated by the ulnar nerve c. The 1st and 2nd lumbricals are innervated by the median n. d. The 1st and 2nd lumbricals are innervated by the ulnar n.

c. The 1st and 2nd lumbricals are innervated by the median n.

Which of the following muscles is NOT innervated by the musculocutaneous nerve? a. Coracobrachialis b. Biceps Brachii c. Triceps brachii d. Brachialis

c. Triceps brachii

Your patient suffers a crushing injury to the Anterior Division of the Brachial plexus. Which of the following findings after your evaluation are true? a. Total loss of elbow extension b. Inability to extend the wrist c. Ulnar and median nerves impairment d. Loss of function of the Extensor indicis muscle

c. Ulnar and median nerves impairment

Which of the following structures are part of the supraclavicular division of the Brachial plexus? a. Lateral cord b. Medial cord c. Upper (Superior), Middle and Lower (Inferior) trunks d. Posterior cord

c. Upper (Superior), Middle and Lower (Inferior) trunks

Which 3 muscles make up the thenar muscles? a. Opponens Pollicis, flexor digiti minimi, Abductor pollicis brevis b. Adductor pollicis, opponens pollicis, palmaris brevis c. Palmaris brevis, abductor pollicis brevis, flexor pollicis brevis d. Abductor pollicis brevis, flexor pollicis brevis, opponens pollicis

d. Abductor pollicis brevis, flexor pollicis brevis, opponens pollicis

A person falling from a tree stops the fall by hanging from a branch with his Right arm. An MRI is performed an it's found that the lateral cord of the brachial plexus was damaged. Which of the following is true regarding damage to the lateral cord? a. Loss of motor innervation to the thoracodorsal muscle b. Loss of motor control of the biceps muscles c. Weakness of the pectoralis major d. B and C

d. B and C

Damage to the medial cord could result in: a. Weakness of the extensor digitorum m. b. Weakness of the Flexor carpi ulnaris m. c. Weakness of the 5th digit d. B and C

d. B and C

Two of the anterior muscles of the arm function as flexors of the forearm. One in particular performs that movement in all positions without losing strength. Which of the following is that muscle? a. Biceps brachii b. Coracobrachialis c. Triceps brachi d. Brachialis

d. Brachialis

The proximal attachment of the coracobrachialis is: a. Greater tuberosity of humerus b. Olecranon of ulna c. Deltoid tuberosity d. Coracoid process and tuberosity

d. Coracoid process and tubercle

A patient is evaluated by the therapist and notices that he has difficulty abducting the 2nd digit. What's the most probable cause of this deficit? a. Damage to the C5 root b. Weakness of the of the abductor pollicis brevis c. Damage to the C6 root d. Damage to the C8-T1 roots

d. Damage to the C8-T1 roots

Which of the following nerves arise from the roots of the Brachial plexus? a. Subclavian n. b. Suprascapular n. c. Lateral pectoral n. d. Dorsal scapular nerve. e. Thoracodorsal nerve.

d. Dorsal scapular nerve.

The superior thoracic artery is small and highly variable to the point that it is not always present in some people. Where is this artery located? a. In the second part of the axillary artery b. In the third part of the axillary artery c. It is a branch of the subclavian artery, not the axillary artery d. In the first part of the axillary artery

d. In the first part of the axillary artery

Which of the following arteries is a branch of the second part of the axillary artery? a. Superior thoracic a. b. Subscapular a. c. Circumflex arteries d. Lateral thoracic a.

d. Lateral thoracic a.

A patient has a tumor on the antero-medial aspect of the forearm. Which of the following disfunctions could be present? a. Thumb opposition weakness b. Difficulty extending the index finger c. Decreased sensation on the posterior aspect of the hand (thumb, index and middle fingers) d. Opposing movement of the fifth digit towards the thumb

d. Opposing movement of the fifth digit towards the thumb

The posterior cord of the brachial plexus has three branches arising directly from it as well as two terminal branches. Damage to posterior cord could result in which of the following? a. Inability to bend the elbow above 100 degrees b. Inability to abduct the fingers, excluding the thumb c. Inability to externally rotate the shoulder d. Wrist drop

d. Wrist drop

Which of the following nerves arise from the lateral cord? a. Musculocutaneous b. Suprascapular c. Lateral pectoral d. Medial pectoral e. A and C

e. A and C

What do you expect to happen if the proximal part of the Posterior Cord (the junction between the Posterior Division and the Posterior Cord) suffered severe damage? a. Paralysis of the anterior compartment of the arm muscles b. Weakness of the Subscapular muscle c. Weakness of the Latissimus dorsi muscle d. Weakness of the Lateral pectoral muscle e. B and C

e. B and C

What's true about the ulnar nerve in the forearm? a. It innervates only one muscle b.It innervates the lateral part of the flexor digitorum profundus c. It innervates the medial part of the flexor digitorum profundus d. It innervates the flexor carpi ulnaris e. C and D

e. C and D

Which of the following are thenar muscles? a. Flexor digiti minimi b. 1st and 2nd lumbricals c. Opponens pollicis d. Abductor pollicis brevis e. C and D

e. C and D

Which of the following nerves arise from the Superior trunk of the brachial plexus? a. Long thoracic b. Dorsal scapular c. Suprascapular d. Subclavian e. C and D

e. C and D

Which of the following tendons form the anatomic snuff box? a. Extensor indicis tendon b. Extensor digitorum tendons c. Abductor pollicis longus d. Extensor pollicis longus e. C and D

e. C and D