The three electrical events of an action potential that occur at the sarcolemma. Concept introduction: The circulatory system refers to the cardiovascular system of the body. This system includes the heart and the blood vessels. The cardiac cycle is defined as the repeated synchronized series of phases, in which the muscles contract and relax for the generation of a heartbeat, followed by the next heartbeat. The association of the organized cardiac muscle cells, which got specialized in their functioning, is called the cardiac conduction system.

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Chapter 19.7, Problem 27LO

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To list: The three electrical events of an action potential that occur at the sarcolemma.

Concept introduction: The circulatory system refers to the cardiovascular system of the body. This system includes the heart and the blood vessels. The cardiac cycle is defined as the repeated synchronized series of phases, in which the muscles contract and relax for the generation of a heartbeat, followed by the next heartbeat. The association of the organized cardiac muscle cells, which got specialized in their functioning, is called the cardiac conduction system.

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