Question

Answer this


class 9
ncert​

Answer 1

Answer:

Answer is given in your book in paragraph with diagram.

Cardiac muscles are present in heart . These are involuntary muscles and they work non stop and are not under control of our brain

Striated muscles are voluntary muscles which are under control of are brain and are present in most of our body

Answer 2

1. Cardiac muscles

• Present in the heart.
• Involuntary in nature.
• They have 1 nucleus.
• The muscle fibers are branches.

2. Smooth muscles

• Found in lungs and alimentary canal.
• Involuntary in nature.
• They have 1 nucleus.
• They are spindle shaped.

3. Striated muscles

• They are connected with bones
• Voluntary in nature.
• They are long and cylindrical muscle fibers.
• They possess many nuclei.
• Striated muscles are unbranched.

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