KIN Exam 2
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