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The Heartbeat Is Initiated by an Electrical Impulse That Originates

question 285

Multiple Choice

The heartbeat is initiated by an electrical impulse that originates at the ____________.


Definitions:

Blood Pressure

Blood pressure is the force that circulating blood exerts against the walls of blood vessels, essential for maintaining the body's circulatory function.

Capillaries

The smallest blood vessels in the body's circulatory system, facilitating the exchange of water, oxygen, carbon dioxide, and other nutrients between blood and tissues.

Pulse

The rhythmic throbbing of the arteries as blood is propelled through them, typically palpable at body sites where arteries are close to the skin surface.

Diastole

Relaxation of the heart chambers, during which they fill with blood; usually refers to ventricular relaxation.

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