Which are actions of the extensor carpi radialis longus?
A)extension and ulnar deviation (adduction)of the hand at the wrist joint
B)flexion and radial deviation (abduction)of the hand at the wrist joint
C)extension of the hand at the wrist joint and flexion of the arm at the glenohumeral joint
D)extension and radial deviation (abduction)of the hand at the wrist joint

Question

Quizplus · Accepted Answer

The extensor carpi radialis longus muscle is responsible for extending and abducting (radial deviation) of the hand at the wrist joint. Therefore, choice D is the correct answer. Choices A and B are incorrect as they describe the actions of other muscles. Choice C is also incorrect as the extensor carpi radialis longus muscle does not have any effect on the glenohumeral joint.

Which Are Actions of the Extensor Carpi Radialis Longus