PHYSIOLOGY
GENERAL PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it make pericardial fluid to reduce friction.
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it seperates muscle fibers of the atria from the ventricle so electrical currents cannot pass.
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it has a visceral layer called the epicardium.
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it is a typical serosa.
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Detailed explanation-1: -Thus, the correct answer is ‘They do not show striations’.
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: -Within the mediastinum, the heart is separated from the other mediastinal structures by a tough membrane known as the pericardium, or pericardial sac, and sits in its own space called the pericardial cavity.
Detailed explanation-4: -A double-layered membrane called the pericardium surrounds your heart like a sac. The outer layer of the pericardium surrounds the roots of your heart’s major blood vessels and is attached by ligaments to your spinal column, diaphragm, and other parts of your body.