The muscles become shorter and thicker because of

Contraction

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Relaxation

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Both of these

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None of these

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Solution

The correct option is A
Contraction

When contracted, muscles become shorter, stiffer and thicker. The exact opposite effect takes place during relaxation.

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Similar questions

The muscles become shorter and thicker because of contraction.

Contraction and relaxation of our muscles bring about

Read the following statements about muscle contraction in humans:

i. Chemical energy is converted into mechanical energy during muscle contraction

ii. Acetylcholineeasterase is an enzyme that catalyzes the production of acetylcholine

iii. In a contracted muscle, volume remains the same.

iv. A contracted muscle becomes shorter and thicker.

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