Question

What are Muscles? I need it for physical education​

Answer 1

Answer:

Muscles are an organ, composed of muscle tissue that contracts to produce a particular movement. ... The muscles that you move by thinking are also called skeletal muscles since the use bones as levers. These are all most always in pairs. The involuntary muscles are found in all hollow organs except for the heart.

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Answer 2

Answer:

Muscles are fibrous tissues which are helpful in locomotion of body and organ movements.

they are made up of sarcomere,its cytoplasm is called sarcoplasm,Its ER is sarcoplasmic reticulum and have Actin and myosin.

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