FINAL REVIEW: TEST 4

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Which of the following muscles performs abduction of the thumb?

Abductor pollicis longus

Which of the following muscles performs action in the frontal plane?

Abductor pollicis longus

Which of the following is the primary function of the Extensor Digit Minimi?

Extension of the little finger at the metacarpophalangeal joint

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

Extension of the thumb

T/F: 1. The flexor digitorum superficialis is innervated by the ulnar nerve (C8&T1). ______

False

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

False

Which of the following muscles performs adduction of the wrist?

Flexor carpi ulnaris

Which of the following is the origin of the flexor carpi radials muscle?

Medial epicondyle of the humerus

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

Medial epicondyle of the humerus

Which of the following is the origin of the Flexor Digitorum Profundus?

Proximal three-fourths of the anterior and medial ulna

Which of the following is the insertion of the extensor carpi ulnaris?

The base of the fifth metacarpal on the dorsal surface

Which of the following is the insertion of the extensor carpi radialis lungus?

The base of the second metacarpal on the dorsal surface

Which of the following is the insertion of the extensor carpi radialis brevis?

The base of the third metacarpal on the dorsal surface

T/F: Carpel tunnel syndrome is a condition in which there is an increased pressure in the carpel tunnel, which interferes with the normal function of the median nerve

True

T/F: In the context of wrist and hand movements, opposition refers to the movement of the thumb across the palmar aspect to oppose any or all of the phalanges. _______

True

T/F: The extensor carpi ulnaris and the flexor carpi ulnaris are the only two muscles involved in ulnar deviation (adduction) _____

True

T/F: Wrist joint actions include flexion, extension, abduction (radial flexion), and adduction (ulnar flexion). _______

True

T/F: The extensor digiti minimi is innervated by the radial nerve (C6-C8). _______

True

T/F: To stretch the flexor carpi ulnas, the elbow must be fully extended with the forearm supinated while a partner passively extends and abducts the wrist. ______

True

Which of the following muscles performs abduction of the wrist?

Extensor Carpi Radialis Longus

Which of the following muscles inserts on the four tendons to bases of middle and distal phalanges of the four fingers on the dorsal surface?

Extensor digitorum

Which of the following muscles originates on the lateral epicondyle of the humerus?

Extensor digitorum

Which of the following is the "pointing muscle" that originates between middle and distal one-third of the posterior ulna?

Extensor indicis

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

False

Which of the following is the only muscle that flexes the finger DIP joints?

Flexor digitorum Profundus

Which of the following muscles does not perform wrist extension?

Flexor pollicis longus

T/F: The extensor digitorum is the only muscle involved in extension of all four fingers. ____

True

T/F: The flexor pollicis longus inserts on the base of the distal phalanx of the thumb on the palmar surface.

True

T/F: The three wrist flexors, from medial to lateral, are the flexor carpi ulnaris, palmaris longus, and flexor carpi radialis. ______

True

T/F: The wrist flexor muscles have their origin on the medial epicondyle of the humerus. _______

True


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