Heart Anatomy
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Heart anatomy
Heart valves
Valve diseases
Disease diagnosis
Your medical team
FAQs

Basic anatomy and function of the heart

The heart is a muscular organ that pumps blood to all the tissues in your body through a network of blood vessels. The right side of the heart pumps blood through the lungs where it picks up oxygen. The left side of the heart receives the blood containing oxygen and pumps the blood to the rest of your body



Your heart has four chambers and four valves that regulate blood flow:


Anatomy Function

Left and right atria

Chambers that receive blood returning from your body through your veins

Left and right ventricles

Chambers where blood is pumped to your body through your arteries

Mitral valve

The mitral valve controls the flow of oxygen-rich blood from the left atrium to the left ventricle

Tricuspid valve The tricuspid valve controls the flow of oxygen-poor blood from the right atrium to the right ventricle

Aortic valve

The aortic valve controls flow of oxygen-rich blood from the left ventricle to the body

Pulmonary valve The pulmonary valve controls flow of oxygen-poor blood from the right ventricle to the lungs
 
This information is not a substitute for talking with your doctor.