Tip-to-tip prehension involves which of the following muscle groups?
a. Extensor carpi ulnaris, extensor carpi radialis longus, and flexor pollicis brevis
b. Flexor digitorum profundus, opponins pollicis, and abductor pollicis brevis
c. Flexor digitorum profundus and flexor pollicis longus
d. B and C
ANS: D
The muscles listed in (B) are utilized for performance of pad-to-pad prehension. For tip-to-tip prehension, those muscles as well as the addition of the flexor digitorum profundus and flexor pollicis longus are needed.
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