Antagonistic Muscle Pairs Flashcards
1
Q
All muscle are arranged into antagonistic pairs. The term antagonistic refers to
A
Working in opposition to each other.
2
Q
When one muscle pair contracts, the opposite of the muscle pair
A
Relaxes.
3
Q
What is contraction?
A
Contraction is the tightening of a muscle. As the muscle contracts, it becomes shorter and thicker, causing the belly (center) of the muscle to enlarge.
4
Q
What is relaxation?
A
Relaxation occurs when a muscle returns to its original form. As the muscle relaxes, it becomes longer and thinner, and the belly is no longer enlarged.
5
Q
________ and __________ work as a pair to make movement of the arm possible.
A
Triceps and biceps
