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Heart: Structure and Function

Heart: Structure and Function

Author: Aaron Mullally
Description:

This lesson will identify the major structures of the heart and define their specific role in the overall functioning of the heart.

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Tutorial
Terms to Know
Aorta

An artery that delivers blood to the systemic circuit.

Aortic Valve

A valve that allows blood to flow from the left ventricle to the aorta while preventing backflow.

Atrioventricular Valve

A valve that allows blood to flow from the atrium to the ventricle while preventing backflow of blood.

Atrium

The right and left upper chambers of the heart.

Inferior Vena Cava

A vein that delivers deoxygenated blood from the lower portion of the body to the right atrium.

Myocardium

The muscular tissue that composes the heart.

Pericardium

A fluid filled sac that surrounds the heart and provides protection and lubrication.

Pulmonary Valve

A valve that allows blood to flow from the right ventricle to the pulmonary artery while preventing backflow.

Septum

A wall of tissue that separates the right and left halves of the heart.

Superior Vena Cava

A vein that delivers deoxygenated blood from the upper portion of the body to the right atrium.

Ventricle

The right and left lower chambers of the heart.