Question

which musel does heart has ??

Answer 1

Answer:

Cardiac muscle is striated muscle that is present only in the heart. Cardiac muscle fibers have a single nucleus, are branched, and joined to one another by intercalated discs that contain gap junctions for depolarization between cells and desmosomes to hold the fibers together when the heart contracts.

Explanation:

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Answer 2

Explanation:

Cardiac muscle is a special type of muscle tissue that's only found in your heart. Coordinated contractions of cardiac muscle, which are controlled by special cells called pacemaker cells, allow for your heart to pump blood as a single functional unit. Inside your heart are four chambers.

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