Question

Write the characteristics of cardiac muscles.​

Answer 1

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The muscles of heart show rhythmic contraction and relaxation throughout life. The voluntary muscles are called cardiac muscles.

⟶ They are Cylindrical,branched and uninucliated.

⟶ It occur in the heart.

⟶ The intercellular spaces of cardiac muscles are filled with abundant loose connective tissues supplied with blood capillaries.

⟶ They are striated muscles.

⟶ The contraction is inherent.

Answer 2

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Cardiac muscle is characterized by striped muscle fibers, connected together by intercalated disks, where the membranes are specialized to allow electrical signals to pass easily.

Like smooth muscles, cardiac muscles can remain in contraction for a sustained period.

Like skeletal muscles, cardiac muscles also contract quickly.

The formation of contractile proteins in cardiac muscle cells also allows for stronger contractions when the fibers are stretched, which makes the heart pump more efficiently.