QuestionSBA
QuestionChoice
The musculocutaneous nerve innervates the biceps brachii which is the prime supinator of the flexed elbow.
10000991
a
Musculocutaneous nerve
QuestionChoice
The axillary nerve innervates the deltoid but does not innervate any supinating muscles.

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10000995
e
Axillary nerve
QuestionChoice
The radial nerve does innervate the supinator muscle but it is the prime mover of the extended elbow, not the flexed elbow.
10000994
d
Radial nerve
QuestionChoice
The median nerve innervates most of the muscles in the anterior compartment of the forearm and hand, but no supinating muscles.
10000992
b
Median nerve
QuestionChoice
The ulnar nerve innervates the flexor carpi ulnaris, medial interossei, lumbricals, hypothenar muscles and medial heads of the flexor digitorum profundus, but no supinating muscles.
10000993
c
Ulnar nerve
Concept
Chapter
2693
3864
Brachial plexus injuries
Topic
141
Neurology
12745
The prime supinator of the forearm when the elbow is flexed is innervated by which branch of the brachial plexus?
a