Question

Q17. Differentiate between involuntary muscles and cardiac
muscles.
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Answer 1

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✒️Involuntary muscle (or smooth muscle) is innervated by the autonomic nervous system and therefore is not under conscious control. .

✒️Cardiac muscle is striated and contracts powerfully thoughout the life without tiring.

✒️Voluntary muscle is responsible for causing movements of the skeleton at joints.

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✏️Cardiac and skeletal muscle are both striated in appearance, while smooth muscle is not.

✏️Unlike skeletal muscle, smooth muscle is not under conscious control.

✏️Cardiac muscle is also an involuntary muscle but is more akin in structure to skeletal muscle, and is found only in the heart.

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Answer 2

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Voluntary muscles are those which are under control, which means under the control of the sensory nervous system.

Skeletal muscle

Involuntary muscle is under unconscious control, which means under the control of the autonomic nervous system.

Cardiac muscle (also called heart muscle or myocardium) is one of the three major types of muscle, the others being skeletal muscle and smooth muscle. It is an involuntary, striated muscle that constitutes the main tissue of the walls of the heart

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