Unit 4 - Upper Limb, Arm, & Forearm Flashcards
1
Q
What innervates the biceps brachii of the upper arm?
A
musculocutaneous n.
2
Q
What action does the biceps brachii do?
A
flexes arm at elbow, supinates when flexed
3
Q
What innervates the brachialis?
A
musculocutaneous n.
4
Q
What action does the brachialis have?
A
flex the forearm at the elbow
5
Q
What innervates the triceps brachii?
A
Radial nerve
6
Q
What action does the triceps brachii have?
A
Extend the forearm
7
Q
What innervates the anconeus muscle?
A
Radial nerve
8
Q
What action does the anconeus have?
A
Abduct the Ulna during pronation
9
Q
What muscles pronate the arm?
A
pronator teres and pronator quadratus
10
Q
What muscles supinate the arm?
A
supinator and biceps brachii
