The cardiac cycle refers to the contraction and relaxation of the heart. In the heart, the pumping action of both ventricles pushes the blood. The ventricles of the heart are equipped with equal volumes; hence, when the right ventricle receives blood, the left ventricle ejects the blood. The left ventricles pump harder than the right ventricles as it supplies blood to the whole body. If any malfunctions happen during the heart pump, it can lead to heart failure.

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Chapter 19, Problem 8TF

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The cardiac cycle refers to the contraction and relaxation of the heart. In the heart, the pumping action of both ventricles pushes the blood. The ventricles of the heart are equipped with equal volumes; hence, when the right ventricle receives blood, the left ventricle ejects the blood. The left ventricles pump harder than the right ventricles as it supplies blood to the whole body. If any malfunctions happen during the heart pump, it can lead to heart failure.

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