Question

Find out Antagonistic pairs of muscles in human

• A. Cardiac and Smooth muscle
• B. Biceps and Cardiac muscle
• C. Triceps and Smooth muscle
• D. Biceps and Triceps

Answer 1

The correct option is D

Biceps and Triceps

Antagonistic pairs of muscles:
Muscles often work in pairs which work against each other. These are called antagonistic pairs.

• The muscles in the upper arm control the bending and straightening of the arm.
• The two muscles, the biceps and triceps are working against each other.
• When the biceps contracts the lower arm is raised and the arm bends.
• In this position the triceps muscle is relaxed. To straighten the arm the reverse happens.
• The triceps contracts straightening the arm, while the biceps relaxes.
• Antagonistic muscles can be found all over the body.