8. Cardiac muscle is:
Answers
Answer:
Cardiac muscle is an involuntary striated muscle tissue found only in the heart and is responsible for the ability of the heart to pump blood.
Explanation:
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Answer:
cardiac muscle part of myocardium of the heart.
Latin textus muscularis striatus cardiacus.
cardiac muscle also called heart muscle or myocardium is one of three types of vertebrate muscle .
it is an involuntary , striated muscle that constitutes the main tissues of the walls of the heart. The myocardium forms a thick middle layer between the outer layer of the heart wall (the epicardium) and the inner layer( the endocardium) , with blood supplied via the coronary circulation. It I'd composed of individuals heart muscle cells ( cardiomyocytes) join together by intercalated discs, encased by collagen fibers and other substances that form the extracellular matrix.