Question

The muscle which extends the elbow joint while doing pushups is the:

a. subclavius
b. pectoralis major
c. triceps brachii
d. biceps brachii
e. brachialis

Answer 1

The triceps brachii is the muscle that extends the elbow joint while doing pushups.

Step-by-step explanation:

The muscle that extends the elbow joint while doing pushups is the triceps brachii. The triceps brachii is a three-headed muscle located at the back of the upper arm and is responsible for straightening the elbow joint. When you are performing a push up, the triceps brachii contracts to extend the elbow and push your body away from the ground.