MUSCLE
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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protein that forms the microfilaments of the eukaryotic cytoskeleton and plays an important role in cell movement, shape, and internal organization.
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myocardium, is a specialized type of muscle tissue that forms the heart.
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fibrous globulin of muscle that can split ATP and that reacts with actin in muscle contraction to form actomyosin.
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None of the above
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Detailed explanation-1: -Cardiac muscle, also called the myocardium, is one of three major categories of muscles found within the human body, along with smooth muscle and skeletal muscle. Cardiac muscle, like skeletal muscle, is made up of sarcomeres that allow for contractility.
Detailed explanation-2: -Cardiac muscle is very different from skeletal muscle because it has a much more complex structure. Cardiac muscle is able to contract and relax, unlike skeletal muscles which only contract.
Detailed explanation-3: -The myocardium is the middle muscular layer of the heart. It is the thickest layer which lies between the single-cell endocardium layer, and the outer epicardium, which makes up the visceral pericardium that surrounds and protects the heart. The myocardium is composed of specialized muscle cells called cardiomyocytes.
Detailed explanation-4: -There are two major types of cardiac muscle fibers: myocardial contractile cells and myocardial conducting cells (pacemaker cells). The myocardial contractile cells constitute the bulk (99%) of the cells in the atria and ventricles and are responsible for contractions that pump blood through the body.