How many veins and arteries are in the human body

Blood Vessels: Illustrations

how many veins and arteries are in the human body

Operation Ouch - Blood Vessels - Science for Kids

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Your circulatory system contains a vast network of blood vessels, which includes arteries, veins , and capillaries. According to the Cleveland Clinic, if you laid out all of the blood vessels of the body they would be about 60, miles long! Arteries are a type of blood vessel. They work to carry blood away from the heart. In contrast, veins carry blood back to the heart. Because arteries are moving blood being pumped out by the heart, the walls of arteries are thicker and more elastic than those of veins.

In the lungs, the pulmonary arteries in blue carry unoxygenated blood from the heart into the lungs. The aorta is the large artery leaving the heart. The superior vena cava is the large vein that brings blood from the head and arms to the heart, and the inferior vena cava brings blood from the abdomen and legs into the heart. Deep veins , located in the center of the leg near the leg bones, are enclosed by muscle. The iliac, femoral, popliteal and tibial calf veins are the deep veins in the legs.

If you're seeing this message, it means we're having trouble loading external resources on our website. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Science Health and medicine Circulatory system diseases Atherosclerosis, arteriosclerosis, and arteriolosclerosis. Arteries vs. Arteriosclerosis, arteriolosclerosis, and atherosclerosis. Atherosclerosis - part 1.

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Cardiovascular System

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Arteries of the Body

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4 thoughts on “How many veins and arteries are in the human body

  1. Learn what the difference is between arteries, veins, and capillaries by reading The Franklin Institute's learning resources about the human heart. Arteries also contain a strong, muscular middle layer that helps pump blood through the body.

  2. The cardiovascular system consists of the heart, blood vessels, and the approximately 5 liters of blood that the blood vessels transport.

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