Cardiovascular_PP__2023_

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10 Terms

1

Cardiovascular System

The system composed of the heart and blood vessels that supplies oxygen and nutrients to tissues and removes waste.

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2

Deoxygenated Blood

Blood that is low in oxygen and is carried to the lungs via the pulmonary circuit.

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3

Oxygenated Blood

Blood that has been oxygenated in the lungs and is sent to body cells through the systemic circuit.

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4

Pericardium

A double-walled sac that surrounds and protects the heart.

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5

Epicardium

The outer layer of the heart wall; also known as the visceral pericardium.

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6

Myocardium

The middle layer of the heart wall made of cardiac muscle; the thickest layer of the heart.

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7

Endocardium

The inner layer of the heart wall made of connective tissue and epithelium, continuous with the endothelium of major vessels.

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8

Atrioventricular Valve

Valves that prevent backflow of blood from the ventricles into the atria during contraction.

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9

Coronary Arteries

The first branches of the aorta that supply blood to the heart muscle itself.

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10

Cardiac Cycle

The sequence of events in the heart from one heartbeat to the next, including atrial systole, ventricular systole, and diastole.

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