The pair of muscles that have opposite actions or functions is ___.

antagonistic muscles

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cardiac muscles

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smooth muscles

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skeletal muscles

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Solution

The correct option is A
antagonistic muscles

Antagonistic muscles are a pair of muscles that have opposite actions or functions. When one muscle contracts, the other muscle relaxes. The basis of almost all the movements of the body is the proper functioning of antagonistic muscles. Example: The triceps relaxes while the biceps contracts to lift the arm.

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Similar questions

Q. Which muscles act involuntarily? (i) Striated muscles (ii) Smooth muscles (iii) Cardiac muscles (iv) Skeletal muscles

Question 20
The muscular tissue which functions throughout the life continuously without fatigue is

(a) Skeletal muscle
(b) Cardiac muscle
(c) Smooth muscle
(d) Voluntary muscle

A structure which has been moved by a muscle cannot return to its original position without the action of another muscle. Such muscles causing opposing movements are called __(antagonistic muscles/ smooth muscles).

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