Question

DEFINE THE CHARACTERISTICS OF CARDIAC MUSCLE?

Answer 1

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➡️Characteristics of cardiac muscle

•Cardiac muscle tissue is a contractile tissue present only in the heart.

•cell junctions fuse the plasma membranes of cardiac muscle cells and make them stick together communication junction (intercalated discs) at some fusion points allow the cells to contract as a unit i.e., when one cell receive the signal to contract its neighbours are also stimulated to contract.

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Answer 2

Cardiac muscle is specialized tissue that is found only in the heart. It has characteristics similar to both smooth and skeletal muscle tissue, as well as specialized properties, that allow it to function with fast but sustained contractions, rapid conduction and coordinated movement. There are also differing types of cardiac muscle tissue that allow for both strong and coordinated contractions.

•Following are the characteristics:

Cardiac muscle is characterized by striped muscle fibers, connected together by intercolated 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.
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