KIN 301 Ch. 6 and 7
ulnar collateral ligament
A gamekeeper's or skier's thumb is a common injury that involves a sprain of the _____ of the thumb metacarpophalangeal joint and may require surgery when severely sprained.
sagittal; frontal
Flexion of the elbow occurs in the _____ plane of motion, and supination of the forearm occurs in the _____ plane of motion.
pronator quadratus
The _____ muscle does not perform flexion of the elbow.
weak flexion of the shoulder joint
The action of the brachioradialis muscle include all the following except:
pronator quadratus muscle
The anterior interosseous nerve branching from the median nerve innervates the_____.
flexor pollicis longus muscle
The anterior interosseous nerve that branches from the median nerve innervates the _____.
infroglenoid tubercle below the inferior lip of the glenoid fossa of the scapula
The long head of the triceps brachii muscle origingates from the:
supinator muscle
The posterior interosseous nerve branching from the radial nerve innervates the _____.
middle third of the lateral surface of the radius
The pronator teres muscle inserts on the:
the pronator teres muscle
The radial nerve innervates all of the following muscles except:
Supination of the forearm from the pronated position to neutral
Which of the following is an action of the biceps brachii muscle?
Weak flexion of the elbow
Which of the following is an action of the pronator teres muscle?
The pronator teres muscle
Which of the following is an anterior upper extremity muscle?
The base of the fifth metacarpal on the dorsal surface
Which of the following is the insertion for the extensor carpi ulnaris muscle?
The base of the third metacarpal on the dorsal surface
Which of the following is the insertion of the extensor carpi radialis brevis muscle?
The base of the second metacarpal on the dorsal surface
Which of the following is the insertion of the extensor carpi radialis longus muscle?
The base of the distal phalanges of the four fingers
Which of the following is the insertion of the flexor digitorum profundus muscle?
The flexor digitorum profundus muscle
Which of the following is the only muscle the flexes the finger distal interphalangeal joint (DIP) joints?
Medial epicondyle of the humerus
Which of the following is the origin of the flexor carpi radialis muscle?
Proximal three-fourths of the anterior and medial ulna
Which of the following is the origin of the flexor digitorum profundus muscle?
Medial epicondyle of the humerus
Which of the following is the origin of the palmaris longus?
The extensor indicis muscle
Which of the following is the pointing muscle that originates between middle and distal one-third of the posterior ulna?
Extension of the little finger at the metacarpophalangeal joint
Which of the following is the primary function of the extensor digiti minimi muscle?
Extension of the thumb
Which of the following is the primary function of the extensor pollicis longus muscle?
True flexion of the elbow
Which of the following is the sole action of the brachialis muscle?
The abductor pollicis longus muscle
Which of the following muscles does not perform wrist extension?
flexor digitorum profundus muscle
Disruption of a tendon at or near the insertion of the _____ known as a jersey or sweater finger and should be addressed surgically within approximately one week.
Supination
In the context of radioulnar joint movements, which of the following terms refers to the external rotary movement of the radius an the ulna that results in the hand moving from palm-down to the palm-up position?
anconeus muscle
Radioulnar supination is performed by all of the following muscles except the:
aconeus muscle
The chief function of the _____ is to pull the synovial membrane of the elbow joint out of the way of the advancing olecranon process during extension of the elbow.
interosseus ligament
The elbow includes all of the following ligaments except:
lateral epicondyle of the humerus and neighboring posterior parts of the ulna
The supinator muscle originates from the:
The extensor digitorum muscle
Which of the following muscles inserts on the four tendons to the bases of middle and distal phalanges of the four fingers on the dorsal surface?
The pronator quadratus muscle
Which of the following muscles is best stretched by using a partner to grasp the wrist and passively take the forearm into extreme supination?
The brachioradialis muscle
Which of the following muscles is involved in both pronation and supination?
The abductor pollicis longus muscle
Which of the following muscles may not be palpated on the dorsal aspect of the hand?
The extensor digitorum muscle
Which of the following muscles originates on the lateral epicondyle of the humerus?
The abductor pollicis longus muscle
Which of the following muscles performs abduction of the thumb?
The extensor carpi radialis longus muscle
Which of the following muscles performs abduction of the wrist?
The abductor pollicis longus muscle
Which of the following muscles performs actions in the frontal plane?
The carpi ulnaris muscle
Which of the following muscles performs adduction of the wrist?
The extensor indicis muscle
Which of the following muscles performs extension of the index finger at the metacarpophalangeal joing?
The flexor pollicis longus muscle
Which of the following muscles performs flexion of the thumb?
it permits the forearms to clear the hips in the swinging movements during walking
Which of the following statements is true about the carrying angle?
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?
