Wiki User
∙ 2010-03-17 03:27:34your bicep (upper arm muscle) gets smaller/ contracts and pulls the lower arm up
Wiki User
∙ 2010-03-17 03:27:34The biceps brachii muscle is contracted to bend the elbow; to straighten the elbow the triceps brachii muscle is contracted.
when you bend your elbow, what is the triceps muscle acting as in relation to the biceps muscle
The biceps muscle flexes and the triceps extends.
When you bend your arm at the elbow and feel your biceps your upper arm muscle contracts.👏👏
Contracts
Biceps
Biceps Brachii
An Antagonist
Biceps.
contract/flex
The biceps is the muscle on the front of the upper arm; it bulges when you bend your arm at the elbow. The triceps is the muscle on the back of the upper arm. Note that "biceps" and "triceps" can be either singular or plural. It is incorrect to say "bicep" or "tricep."
It either expands or contracts depending on which way you're bending your elbow.