KIN Exam 2

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T/F There are eleven muscles that are considered to be "intrinsic" to the hand.

False (8)

What is carrying angle

The angle formed between the humerus and the forearm.

T/F All four muscles of the rotator cuff attach to the humerus.

True

Distal interphalangeal, DIP

between distal and tip of phalanges

What do the hypothenar muscles do?

move little finger

Which of the following muscles performs adduction of the wrist?

The flexor carpi ulnaris muscle

What agonist muscles are required for a scapula elevation (shoulder shrug)?

Levator Scapulae Trapezius (Upper and middle) Rhomboids

Which of the following is the origin of the palmaris longus muscle?

Medial epicondyle of the humerus

Which of the following muscles of the shoulder joint are located on the POSTERIOR surface of the scapula? A. Pectoralis major B. Coracobrachialis C. Supraspinatus D. Subscapularis

Supraspinatus

T/F The olecranon process is located on the medial aspect of the ulna.

True

Which of the following is an action of the middle fibers of the deltoid muscles? A. Abduction B. Extension C. Flexion D. Adduction

Abduction

Which of the following is an action performed by the serratus anterior?

Abduction and upward rotation

Which of the following is an action of the middle fibers of the deltoid muscles?

Abduction of the glenohumeral joint

What do the intermediate muscles do?

Act on fingers 2-5

Muscles that primarily flex the elbow and PRONATE the forearm include all of the following EXCEPT? A. Anconeus B. Brachioradialis C. Pronator teres D. Pronator quadratus

Anconeus

The muscles that perform radioulnar SUPINATION include all of the following EXCEPT? A. Anconeus B. Biceps brachii C. Supinator D. Brachioradialis

Anconeus

When viewed from the anatomical position which of the following is located POSTERIOR surface of the arm? A. Anconeus B. Pronator quadratus C. Biceps brachii D. Pronator teres

Anconeus

Which muscles concentrically act to perform shoulder flexion?

Anterior deltoid pectoralis majors, coracobrachialis, biceps brachii (long head)

The glenohumeral ligaments include all of the following except? A. Anterior glenohumeral ligament B. Superior glenohumeral ligament C. Inferior glenohumeral ligament D. Middle glenohumeral ligament

Anterior glenohumeral ligament

What are the structures associated with the shoulder joint?

Clavicle , scapula and the humerus

T/F The flexor digitorum superficialis performs its action in the frontal plane.

False (sagital)

T/F Hitting the funny bone is actually a contusion to the humeral nerve.

False (ulnar nerve)

T/F The agonist muscles that perform glenohumeral flexion are the anterior deltoid and the pectoralis major.

False, also includes the coracobrachilis

T/F The elbow joint is a hinge-type joint that allows for internal and external rotation.

False, does NOT allow internal/external rotation. ONLY flexion/extension

T/F Movement at the elbow by the forearm away from the shoulder is accurately described by the term "flexion."

False, it is extension

T/F Supination refers to internal rotary movements of the radius on the ulna.

False, it is external movement

T/F In the context of wrist and hand movements, radial flexion refers to the movement of the thumb side of the hand toward the medial aspect or radial side of the forearm.

False, movement of bending the wrist to the thumb, or radial bone, side.

T/F The scapula and clavicle serve as the proximal attachments for the muscles that flex and extend the elbow.

False, the scapula and humerus

T/F While in the anatomical position the radius is medial with respect to the ulna.

False, the ulna is medial

T/F The origin of serratus anterior is the surfaces of the upper seven ribs at the side of the chest.

False, the upper 9 ribs

Which plane of motion does shoulder girdle elevation and depression occur in?

Frontal

Which of the following is an action of the biceps brachii?

Horizontal adduction of the shoulder joint

The ligaments of the elbow include all of the following EXCEPT? A. Radial collateral B. Interosseus C. Ulnar collateral D. Annular

Interosseus

Which of the following is NOT a muscle of the rotator cuff group? A. Supraspinatus B. Infraspinatus C. Teres minor D. Intrascapularis

Intrascapularis

Which of the following is NOT an intrinsic glenohumeral muscle? A. Deltoid B. Coracobrachialis C. Teres major D. Pectoralis major

Pectoralis major

Which of the following is an origin of the latissimus dorsi muscle?

Posterior crest of the ilium

Which of the following is NOT an action of the pectoralis major muscle?

Pronation

When viewed from the anatomical position which of the following is located on the ANTERIOR surface of the arm? A. Anconeus B. Supinator Teres C. Triceps Brachii D. Pronator teres

Pronator teres

When viewed from the anatomical position which of the following is located on the anterior surface of the arm? A. Anconeus B. Supinator Teres C. Triceps Brachii D. Pronator teres

Pronator teres

What is the role of the LCL and MCL?

Provide stability while elbow is flexed.

Which of the following are NOT anterior muscles of the shoulder joint? A. Pectoralis major B. Coracobrachialis C. Supraspinatus D. Subscapularis

Supraspinatus

What condition is associated with pain on the lateral region of the elbow?

Tennis elbow

Which of the following is NOT considered to be a muscle in the rotator cuff group?

Teres MAJOR

Which of the following muscles of the shoulder joint are located on the posterior surface of the scapula?

Teres Minor ,Infraspinatus muscle, Teres Major muscle

Which of the following muscles works effectively with the latissimus dorsi and is said to be the latissimus dorsi's "little helper"?

Teres major

Which of the following muscles performs abduction of the thumb?

The abductor pollicis longus muscle

Which of the following muscles performs abduction of the wrist?

The extensor carpi radialis longus muscle

Which of these muscles may be palpated just proximal to the dorsal aspect of the wrist and approximately 1 cm medial to the radial styloid?

The extensor carpi radialis longus muscle

What is the relationship between mobility and stability?

The more mobile a joint is, the less stable it is and the more stable it is, the less mobile.

What are the intrinsic muscles of the thumb called?

Thenar muscles

T/F The only muscle involved in extending all of the metacarpophalangeal and interphalangeal joints of the four fingers is the extensor digitorum.

True

T/F The shoulder girdle is very mobile and has an unlimited range of motion

True

Which of the following are NOT actions of the pectoralis minor muscle? A. Abduction B. Downward rotation C. Depression D. Adduction

adduction

Which type of joint is the glenohumeral joint (shoulder joint)?

ball and socket

Proximal interphalangeal, PIP

between proximal and distal phalanges

An agonist to the supinator muscle is the _____. A. biceps brachialis B. brachialis C. brachioradialis D. triceps brachii

biceps brachialis

Radioulnar pronation is performed by all of the following muscles except the

brachialis

What kind of joint is the wrist joint?

condyloid

What is Glenohumeral internal rotation deficit (GIRD)

difference in internal rotation of motion between an individual's throwing and non-throwing shoulder

The _____ muscle does not perform flexion of the elbow

pronator quadratus

What muscles are in the rotator cuff (SITS)

subscapularis, supraspinatus, infraspinatus, and teres minor muscles

Which of the following muscles performs flexion of the thumb?

the flexor pollicis longus muscle

T/F The coracoclavicular ligament is particularly important in providing stability to the acromioclavicular joint.

true

The most commonly injured ligament in the elbow due to throwing is the _____. A. annular ligament B. radial collateral ligament C. radioulnar ligament D. ulnar collateral ligament

ulnar collateral ligament

T/F The insertion of the triceps brachii muscle is the olecranon process of the ulna.

True

T/F The nerve that innervates the serratus anterior muscle is the long thoracic nerve (C5-7)

True

What are the carpals?

8 bones arranged in 2 rows of 4 that form the wrist.

Which of the following is not a function of the latissimus dorsi muscle?

Adduction and extension of the glenohumeral joint

Which of the following is an action of the latissimus dorsi muscle?

Both internal rotation and extension

Which network of nerves innervate all shoulder joint muscles?

Brachial Plexus

Muscles that primarily extend the elbow and SUPINATE the forearm include all of the following EXCEPT? A. Triceps brachii B. Anconeus C. Supinator D. Brachialis

Brachialis

Radioulnar supinators include all of the following except? A. Biceps brachii B. Supinator muscle C. Brachialis D. Brachioradialis

Brachialis

The muscles that perform radioulnar PRONATION include all of the following except? A. Brachioradialis B. Brachialis C. Pronator teres D. Pronator quadratus

Brachialis

Which of the following arm muscles is involved in both pronation and supination?

Brachioradialis

All of the following are bony landmarks located on the humerus except? A. Lateral condyloid ridge B. Olecranon fossa C. Coronoid fossa D. Coronoid process

Coronoid process (ulna)

Which of the following actions is performed by the levator scapulae?

Elevation

Which of the following is not an action of the brachioradialis muscle? A. Flexion of the elbow B. Extension of the elbow C. Pronation from supinated position D. Supination from a pronated position

Extension of the elbow

Which of the following is the primary function of the extensor digiti minimi muscle?

Extension of the little finger at the metacarpophalangeal joint

Which of the following is NOT a function of the latissimus dorsi muscle? A. External rotation B. Internal rotation C. Extension D. Adduction

Extensnsion

Which of the following muscles performs ABDUCTION of the wrist? A. Palmaris longus B. Flexor carpi ulnaris C. Extensor digitorum D. Extensor carpi radialis longus

Extensor carpi radialis longus

Which of these muscles may be palpated just proximal to the dorsal aspect of the wrist? A. Palmaris longus B. Flexor carpi ulnaris C. Flexor pollicis longus D. Extensor carpi radialis longus

Extensor carpi radialis longus

Which of the following muscles performs extension of the index finger? A. Extensor indicis B. Extensor pollicis longus C. Extensor digiti minimi D. Abductor pollicis longu

Extensor indicis

T/F All of the wrist and hand muscles are innervated from the radial and median nerves of the brachial plexus

False

T/F Each finger has three interphalangeal joints, whereas the thumb has only two

False

T/F Each finger has three interphalangeal joints, whereas the thumb has only two.

False

T/F Lateral epicondylitis is a condition that occurs less commonly than medial epicondylitis.

False

T/F The 3 primary wrist FLEXORS are the flexor carpi radialis, flexor carpi ulnaris, and the flexor pollicis brevis

False

T/F The choracobrachialis muscle inserts on the coracoid process.

False

T/F The flexor digitorum superficialis muscle performs its action in the frontal plane.

False

T/F The levator scapulae muscle is responsible for upward rotation of the inferior angle of the scapula

False

T/F The median nerve and all of the flexor tendons except for the flexor carpi ulnaris pass through the carpal tunnel.

False

T/F The range of motion of the glenohumeral joint in the frontal plane is approximately 90-95' for adduction and abduction.

False

T/F When the arm is held in the anatomical position the radial tuberosity is in close proximity to lateral side of the ulna.

False

T/F Supination refers to internal rotary movements of the radius on the ulna

False (external)

Which of the following is the sole action of the brachialis muscle? A. Weak flexion of the shoulder B. Flexion of the elbow C. Pronation from supinated position D. Supination from a pronated position

Flexion of the elbow

What are the actions of the flexor carpi radialis?

Flexion of the wrist, abduction of the wris

What are the actions of the flexor carpi ulnaris?

Flexion of the wrist, adduction of the wrist

Which of the following muscles does not perform wrist extension?

Flexor pollicis longus

Which of the following statements is not true regarding the wrist and hand joints? A. Forms 16 phalanges B. Composed of 29 bones C. Contain more than 25 joints D. Composed of more than 30 muscles

Forms 16 phalanges

Actions of the elbow and radioulnar joints occur in all of the following planes EXCEPT? A. Frontal B. Transverse C. Sagittal D. Horizontal

Frontal

The deltoid, latissimus dorsi, and rotator cuff all insertion onto what bone?

Humerus

Which of the following glenohumeral motions is often restricted leading to a higher risk of injury among overhead throwers? A. Abduction B. Flexion C. External rotation D. Internal rotation

Internal rotation (GIRD)

Which of the following statements is true about the carrying angle?

It permits the forearms to clear the hips in the swinging movements during walking

Which of the following is considered to be an extrinsic glenohumeral muscle? A. Deltoid B. Coracobrachialis C. Teres major D. Latissimus dorsi

Latissimus dorsi

Which of the following is the insertion of the latissimus dorsi muscle?

Medial lip of the intertubercular groove of the humerus

Actions of the biceps brachii include all of the following EXCEPT? A. Pronation of the forearm B. Flexion of the elbow C. Supination of the forearm D. Weak flexion of the shoulder joint

Pronation of the forearm

Which of the following muscles does NOT act in flexion of the elbow? A. Biceps brachii B. Brachiali sC. Brachioradialis D. Pronator quadratus

Pronator quadratus

The radial nerve innervates all of the following muscles EXCEPT? A. Pronator teres B. Triceps brachii C. Brachioradialis D. Anconeus

Pronator teres

Flexion of the elbow occurs in the ____ plane of motion, and supination of the forearm occurs in the ____ plane of motion

Sagittal; transverse

According to your text, what are the 3 primary joints associated with shoulder girdle movement?

Sternoclavicular, Acromioclavicular, and Scapulothoracic Joint

Which of the following muscles of the shoulder joint are located on the POSTERIOR surface of the scapula? A. Pectoralis major B. Coracobrachialis C. Supraspinatus D. Subscapularis

Supraspinatus

Which of the following muscles performs extension of the index finger at the metacarpophalangeal joint?

The extensor indicis muscle

How many degrees of freedom does the shoulder joint have?

Three

Which of the following is NOT a factor that contributes to the predisposition for injury at the glenohumeral joint? A. Shallowness of glenoid fossa B. Laxity of ligamentous structures C. Lack of strength and endurance in muscles D. Tight configuration of ligaments

Tight configuration of ligaments

Which of the following muscles perform BOTH elevation and depression?

Trapezius

5 muscles primarily involved in shoulder girdle movement

Trapezius Rhomboid, Levator scapula Serratus anterior pectoralis major

T/F All of the wrist flexor muscles generally have their origins located on the anteromedial aspect of the proximal forearm and the medial epicondyle of humerus.

True

T/F Carpal tunnel syndrome is a condition in which there is an increased pressure in the carpal tunnel, which interferes with the normal function of the median nerve.

True

T/F Glenohumeral joint stability is enhanced by the glenoid labrum.

True

T/F In the context of wrist and hand movements, dorsiflexion refers to the movement of the back of the hand and/or the phalanges toward the posterior or dorsal aspect of the forearm

True

T/F In the context of wrist and hand movements, ulnar flexion refers to the movement of the little finger side of the hand toward the medial aspect or ulnar side of the forearm.

True

T/F Medial epicondylitis is also known as golfer's elbow.

True

T/F Motions of the finger metacarpophalangeal joints include flexion, extension, abduction, and adduction.

True

T/F Muscles that are considered to be WRIST FLEXORS include the flexor carpi radialis, flexor carpi ulnaris, and palmaris longus

True

T/F Normally, the wrist has more adduction range of motion than abduction range of motion.

True

T/F One of the functions of the supraspinatus muscle is to stabilize the humeral head in the glenoid fossa.

True

T/F Opposition is movement of the thumb across palmar aspect to oppose any or all of the phalanges.

True

T/F Posterior dislocations occur frequently at the glenohumeral joint

True

T/F Shoulder adduction occurs in the FRONTAL plane

True

T/F The 3 primary wrist EXTENSORS are the extensor carpi radialis longus, extensor carpi radialis brevis, and the extensor carpi ulnaris

True

T/F The actions of serratus anterior include abduction and upward rotation.

True

T/F The extensor carpi ulnaris and flexor carpi ulnaris are the prime movers in ulnar deviation

True

T/F The extensor digitorum muscle, also known as the extensor digitorum communis, is the only muscle involved in extension of all four fingers.

True

T/F The fingers can only flex and extend, except at the metacarpophalangeal joints, where abduction and adduction are controlled by the intrinsic hand muscles.

True

T/F The flexor digitorum superficialis and the flexor digitorum profundus are finger flexors, and the flexor pollicis longus is a thumb flexor.

True

T/F The flexor pollicis longus is located lateral with respect to flexor digitorum profundus.

True

T/F The location of the pectoralis minor muscle is such that the muscle may be palpated with little difficulty.

True

T/F The pectoralis minor can perform adduction, downward rotation, or depression when activated.

True

T/F The radial collateral ligament provides lateral stability to the elbow and is rarely injured.

True

T/F The serratus anterior performs abduction in the transverse plane.

True

T/F When attempting extreme external rotation the total shoulder range of motion is enhanced by scapula adduction.

True

T/F When performing a pushup the biceps brachii is considered to be an antagonist musc

True

T/F Wrist joint actions include flexion, extension, abduction, and adduction.

True

Why is the rotator cuff important?

Vital in maintaining humeral head in correct approximation within glenoid fossa

Tightening a screw with a screwdriver using the right hand depends significantly upon the action of the _____. A. biceps brachialisB. brachioradialisC. supinatorD. triceps brachii

biceps brachialis

An action common to the latissimus dorsi, teres major, and lower pectoralis major is

extension

Which of the following is not an action of the brachioradialis muscle?

extension of the elbow

which of the following is a primary action of the latissimus dorsi muscle?

extension of the glenohumeral joint

Which of the following is the primary function of the extensor pollicis longus muscle?

extension of the thumb

T/F origin rhomboid muscle is medial border of scapula

false

Which muscle is a synergist with teres minor in lateral rotation of the shoulder?

infraspinatus

Metacarpophalangeal, MCP

knuckles between meta and phalanges

Which of the following is the broadest muscle of the back and is sometimes referred to as the swimmer's muscle?

latissimus dorsi

What are the actions of the palmaris longus?

wrist flexion


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