Match the muscle with its main action: ​     

______Biceps brachii muscle     

______Pronator teres muscle     

______Extensor digitorum muscle     

______Brachialis muscle     

______Triceps brachii muscle     

______Flexor carpi radialis muscle​a.

a. Extends fingers and hand

b. Supinates forearm

c. Flexes hand

d. Extends forearm

e. Pronates forearm

f. Flexes forearm

Video transcript

Hi, everyone. Let's take a look at this practice problem together which muscle flexes the forearm. The answer options are a brachioradialis muscle. B, triceps, brachia muscle, C, pronator, Terry's muscle and D flexor carpi radialis muscle. So all of our answer options are muscles that are found in the upper limb. So let's just go ahead and review each of their actions. Option D flexor carpi radialis muscle. This muscle is located on the forearm. Its action is wrist flexion. Option C pronator tries this muscle's name tells us its function. So pronator tells us that this muscle pro nates the forearm or in other words, it causes rotation of the forearm so that the palm is facing down. And then the triceps rachi. Option B, this muscle is located on the posterior upper arm and its action is elbow extension. So options BC and D do not produce forearm flexion. That means the correct answer is option A, the brachioradialis muscle. Now, this muscle is located superficially and it is bound on the lateral forearm. It's the muscles whose primary action is to flex the forearm. So the correct answer is option, a brachioradialis muscle. All right, everyone I hope you found this helpful and I'll see you soon for the next practice problem.