Ch 7 multiple choice
Which has its insertion on the four tendons to the bases of middle and distal phalanxes of the four fingers on the dorsal surface of the hand?
Extensor digitorum
Which has its origin on the lateral epicondyle of the humerus?
Extensor digitorum
Performs extension of the index finger
Extensor indicis
Performs wrist extension
Extensor indicis, ext pollicis longus, ext digitorum
Which of the following muscles perform adduction of the wrist?
Flexor carpi ulnaris
Performs an action in the frontal plane
abd pollicis longus
may not be palpated on the dorsal aspect of the hand
abd pollicis longus
Performs abd of the thumb
Abductor pollicis longus
Which of the following muscles can be palpated just proximal to the dorsal aspect of the wrist?
Extensor carpi radialis longus
Which of the following muscles perform abduction of the wrist?
Extensor carpi radialis longus
Which of the following muscles flexes the distal interphalangeal joints of the fingers?
Flexor digitorum profundus
Which of the following muscles performs flexion of the thumb?
Flexor pollicis longus
Which of the following statements is not true regarding the wrist and hand joints? -Forms 16 phalanges -Composed of 29 bones -Contains more than 25 joints -Composed of more than 30 muscles
Forms 16 phalanges
origin of flexor digitorum profundus
Proximal 3/4 of medial and anterior surfaces of ulna and interosseous membrane
insertion of extensor carpi radialis longus
base of 2nd metacarpal
insertion of the extensor carpi radialis brevis
base of 3rd metacarpal
insertion of extensor carpi ulnaris
base of 5th metacarpal
insertion of the flexor digitorum profundus
base of the distal phalanxes of the four fingers
Proximal interphalangeal joint motion occurs about the ____ axis
frontal
The 3rd metacarpophalangeal joint moves in which planes?
frontal, saggital
The wrist joint moves through the ____ plane about the _____ axis with ulnar and deviation.
frontal, sagittal
origin of flexor carpi radialis
medial epicondyle of humerus
origin of the palmaris longus
medial epicondyle of humerus
origin of flexor pollicis longus
middle anterior surface radius
In order to obtain the greatest amount of active wrist extension you should place the fingers in ____
relaxed flexion