45 Flashcards
1
Q
What action does the Flexor Digiti Minimi Brevis perform?
A
Flexes the proximal phalanx of the 5th digit.
2
Q
What does the Opponens Digiti muscle do?
A
Draws the 5th metacarpal anteriorly and rotates it
3
Q
What action do the Lumbricals perform?
A
Flex metacarpophalangeal joints and extend interphalangeal joints.
4
Q
What innervates the 1st and 2nd Lumbricals?
A
Median nerve (C8, T1).
5
Q
What innervates the 3rd and 4th Lumbricals?
A
Deep branch of the ulnar nerve (C8, T1).
6
Q
What do the Dorsal Interossei muscles do?
A
Abduct 2nd–4th digits and assist in joint movements.
7
Q
What is the action of the Palmar Interossei muscles?
A
Adduct the 2nd, 4th, and 5th digits.
