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Parts of the Heart and Their Functions!!!

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Rebecca M

on 27 March 2015

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Transcript of Parts of the Heart and Their Functions!!!

Right Atrium: Takes deoxygenated blood from your body sends it through the vena cava and pumps the blood into the right ventricle.
Coronary Artery: Supplies blood to the heart muscle
Pulmonary Veins: Responsible for carrying oxygenated blood from the lungs to the left atrium of the heart.
The Ventricles!!!
Right Ventricle: Pumps blood through the pulmonary valve and the pulmonary artery and to the lungs.
The Valves!!!
Bicuspid Valve: Makes sure that blood is only flowing one way.

Arteries, Vena Cava, and Veins!!
By: Becca Mandernach
Parts of the Heart and Their Functions!!!
Left Atrium: Pumps oxygen-rich blood straight into the left ventricle
Pulmonary Artery: Vessel that transports deoxygenated blood from the right ventricle to the lungs
Left Ventricle: Pumps oxygenated blood to all the tissues all over the body.
Pulmonary Semilunar Valve: Prevents backflow of blood from the arteries into the ventricles.
Tricuspid Valve: Allows blood to flow only from the atrium into the ventricle.
Aortic Semilunar Valve: Separate the ventricles from major arteries.
Vena Cava!!!
Inferior Vena Cava: Carries blood from the lower part of the body to the heart.

Superior Vena Cava: One of two main veins that brings deoxygenated blood from the body to the heart.

Aorta and Septum!!
Aorta: Opens during systole; blood is ejected from left ventricle into aorta. Closes during diastole; prevents reflux from aorta into left ventricle.

Septum: Contributes to the pumping function of the left ventricle.

Path the Blood flows in the Heart
1. A blood cell without oxygen will travel through a vein until it meets up with the superior vena cava, a large vein that takes blood from the head and arms to the heart.
2. The cell passes the right atrium, where it meets with blood from the lower part of the body from the inferior vena cava.
3. After passing through the tricuspid valve, blood is pumped into the right ventricle, which pumps blood through the pulmonary valve and into the pulmonary trunk, a sort of T-intersection in the chest.
4. At this point, the cell either goes right or left. For the sake of argument, this cell chooses the left pulmonary artery. It follows that route until it meets capillaries in the left lung where it receives oxygen.
5. At this point in the process, the cell will return to the heart via the left pulmonary vein and meet up with other blood from the right lung in the left atrium of the heart.
6. The blood then flows down through the mitral valve and into the left ventricle. This is the part of the heart that pumps blood throughout the entire body.
7. After a quick burst through the aortic valve, the blood follows through the ascending aorta and out through the circulatory system to that little toe of yours.
8. After the organs and muscle tissue use the oxygen, it’ll travel up the inferior vena cava and back to the heart, starting the process all over again.

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