MUSCLE NERVE CARTILAGE BONE
SKELETAL MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are found in the heart and voluntary
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They are found in the heart and autorhythmic
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They are found in the heart and stomach, and are autorhythmic
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None of the above
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Detailed explanation-1: -Answer and Explanation: All of the following statements are true of cardiac muscle: B. Cardiac muscle forms the walls of the chambers of the heart, This includes the walls of the atria and the ventricles.
Detailed explanation-2: -So, the correct option is ‘They are connected by intercalated discs, through which action potential spread to all cells in the heart’.
Detailed explanation-3: -Autorhythmicity is the quality of generating its rhythm and is the property of the muscles of the heart that are called cardiac muscles. These are involuntary muscles with striated structure and found in the walls of the heart. These are also known as myocardium that constitutes the middle layer of the heart wall.
Detailed explanation-4: -Cardiac muscle makes up the thick middle layer of the heart and is surrounded by a thin outer layer called the epicardium or visceral pericardium and an inner endocardium.