Parts and functions of the Circulatory System
- Heart- About the size of two adult hands held together, the heart sits near the center of the chest. Thanks to consistent pumping, the heart keeps the circulatory system working.
* Arteries - carry blood AWAY from the heart
* Vena Cava - the largest vein in the body, it carries blood from the body back to the heart (consists of superior and inferior vena cava)
* Veins - carry blood TOWARDS the heart
* Pulmonary Arteries - carry deoxygenated blood from the right ventricle to the lungs.
* Pulmonary Veins - take oxygenated blood from the lungs to the left atrium
* Oxygenated blood - blood carrying oxygen after leaving the lungs (blood passes through pulmonary veins back to the heart, enters left atrium, pumped to body by left ventricle)
* Deoxygenated blood - blood carrying little oxygen, and carbon dioxide (blood returning the the right atrium, and pumped by the right ventricle through the pulmonary arteries to the lungs)
* Right Atrium - receives deoxygenated blood from the body, mostly through the inferior and superior vena cava
* Right Ventricle - pumps deoxygenated blood into the pulmonary arteries * Left Atrium - receives oxygenated blood from the lungs * Left Ventricle - pumps oxygenated blood into the aorta
* Coronary Vessels - supply the heart muscle with its blood supply
* Bicuspid Valve - (mitral valve) valve between the left atrium and the left ventricle.
* Tricuspid Valve - valve between the right atrium and the right ventricle.
* Vena Cava - the largest vein in the body, it carries blood from the body back to the heart (consists of superior and inferior vena cava)
* Veins - carry blood TOWARDS the heart
* Pulmonary Arteries - carry deoxygenated blood from the right ventricle to the lungs.
* Pulmonary Veins - take oxygenated blood from the lungs to the left atrium
* Oxygenated blood - blood carrying oxygen after leaving the lungs (blood passes through pulmonary veins back to the heart, enters left atrium, pumped to body by left ventricle)
* Deoxygenated blood - blood carrying little oxygen, and carbon dioxide (blood returning the the right atrium, and pumped by the right ventricle through the pulmonary arteries to the lungs)
* Right Atrium - receives deoxygenated blood from the body, mostly through the inferior and superior vena cava
* Right Ventricle - pumps deoxygenated blood into the pulmonary arteries * Left Atrium - receives oxygenated blood from the lungs * Left Ventricle - pumps oxygenated blood into the aorta
* Coronary Vessels - supply the heart muscle with its blood supply
* Bicuspid Valve - (mitral valve) valve between the left atrium and the left ventricle.
* Tricuspid Valve - valve between the right atrium and the right ventricle.
- Arteries-Arteries carry blood rich in oxygen away from the heart and where they need to go.
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- Veins-Veins carry deoxygenated blood to the lungs where they receive oxygen.
- Blood- is the carrier of nearly everything for the body. It transports hormones, nutrients, oxygen, antibodies, and other important things needed to keep the body healthy.
(watch this--->https://www.youtube.com/watch?v=oE8tGkP5_tc)
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