Question

Two muscles responsible for opposition of the thumb. What are they?

a) Abductor pollicis brevis and flexor pollicis brevis
b) Extensor pollicis longus and extensor pollicis brevis
c) Abductor pollicis longus and flexor pollicis longus
d) Extensor indicis and abductor digiti minimi

Answer 1

The answer would be a) abductor pollicis brevis and flexor pollicis brevis.

Answer 2

The two muscles responsible for opposition of the thumb are the abductor pollicis brevis and flexor pollicis brevis. The abductor pollicis brevis moves the thumb away from the midline of the hand, while the flexor pollicis brevis flexes the thumb. Correct option is a)

Step-by-step explanation:

The two muscles responsible for opposition of the thumb are the abductor pollicis brevis and the flexor pollicis brevis. These muscles form part of the thenar muscles, which are located on the lateral part of the palm and act on the thumb. The abductor pollicis brevis moves the thumb away from the midline of the hand, while the flexor pollicis brevis flexes the thumb.