Briefly describe what the heart is and how it pumps blood.

Briefly describe what the heart is and how it pumps blood.

Briefly describe what the heart is and how it pumps blood.

Briefly describe what the heart is and how it pumps blood.

The heart is the main organ of the cardiovascular system.  The function of the heart is to pump blood.  The heart is divided into four chambers: the right and left atrium, and the right and left ventricle.  The left side of the heart pumps oxygenated blood and the right side of the heart pumps deoxygenated blood.  Blood becomes oxygenated in the lungs and returns to the left atrium via the pulmonary veins.  From the left atrium blood is pumped through the bicuspid valve (also called the mitral valve) into the left ventricle.  From the left ventricle, blood travels to the aorta, which pumps the oxygenated blood to the rest of the body.  As blood travels through the body, it dumps off oxygen to tissues and picks up waste products (such as carbon dioxide).  The now deoxygenated blood returns to the right side of the heart via the vena cava.  Deoxygenated blood then travels through the right atrium and to the right ventricle through the tricuspid valve.  Deoxygenated blood exits the heart and travels to the lungs through the pulmonary arteries.  Once in the lungs, the waste products are removed and oxygen is added to the blood.  The blood is now oxygenated and can return to the heart via the pulmonary veins to go through the whole cycle again. Oxygenated summaryright/left lungs to right/left pulmonary veins to left atrium through bicuspid valve to left ventricle to aorta, to bodyDeoxygenated summarybody to superior/inferior vena cava to right atrium through tricuspid valve to right ventricle to right/left pulmonary veins to right/left lungs
Briefly describe what the heart is and how it pumps blood.
Briefly describe what the heart is and how it pumps blood.
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Briefly describe what the heart is and how it pumps blood.
Read More