The Normal Pacemaker of the Heart Is the

question 151

Multiple Choice

The normal pacemaker of the heart is the

• A)SA node
• B)AV node
• C)bundle of His
• D)Purkinje system
• E)ventricular myocardium

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Definitions:

Cholesterol

A waxy, fat-like substance found in all cells of the body, necessary for the creation of hormones, vitamin D, and substances that help digest foods.

Semilunar Valve

A type of heart valve with half-moon-shaped flaps that prevents blood from flowing back into the heart chambers after it has been ejected.

Right Ventricle

One of the four chambers of the heart, located in the lower right portion, responsible for pumping deoxygenated blood to the lungs via the pulmonary artery.

Blood Flow

The movement of blood through the circulatory system of the body, delivering oxygen and nutrients to cells and removing waste products.