Chapter 7 Quiz

Which of the following muscles does not perform wrist extension?

abductor pollicis longus

Which of the following muscles performs abduction of the thumb?

abductor pollicis longus

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 while the thumb only has two.

false

Which of the following muscles flexes the distal interphalangeal joints of the fingers?

flexor digitorum profundus

Medial epicondyle, medial condyloid ridge and coronoid process are origins for which muscles?

flexors

Which of the following statements is NOT true regarding the wrist and hand joints?

forms 16 phalanges

Proximal interphalangeal joint motion occurs about the ___ axis.

frontal

The 3rd metacarpophalangeal joint moves in which of the following planes?

frontal, sagittal

The wrist joint moves through the ___ plane about the ___ axis with ulnar and radial deviation.

frontal; sagittal

In order to obtain the greatest amount of active wrist extension, you should place the fingers in ___.

relaxed flexion

Name three of the eight carpal bones in the wrist

trapizium, trapezoid, lunate

T/F 'carpal tunnel syndrome' is swelling and inflammation from increased pressure in carpal tunnel that results in decreased function of the median nerve.

true

T/F motions of the wrist joint include flexion, extension, abduction and adduction.

true

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

true

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

true

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

true

T/F the muscles that are considered to be the agonists of phalangeal flexion include flexor digitorum superficialis, flexor digitorum profundus, and flexor pollicis longus.

true