The Cardiovascular System

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Every minute, the heart pumps about 1.5 gallons of blood through the body. The heart is “just above the diaphragm, between the right and left lungs” (Balaban 197). About two-thirds of the heart are located on the left side of the chest, while only about one-third of the heart is located on the right side of the ribcage. The cardiovascular system provides a transport system between the heart and lungs. The heart’s most important function is to indulge indispensable nutrients to the tissues and to eliminate waste products (Balaban 185). The human heart is responsible for circulating blood throughout the body and is the diameter of a closed fist (CardioSmart). The lung’s obligation in the body is to transport oxygen to the blood, while the heart’s …show more content…
“The heart valves work the same way as one-way valves in the plumbing of your home, preventing blood from flowing in the wrong direction” (ClevelandClinic). The tricuspid valve is the first one that the blood comes across as it arrives the heart. It stands between the right atrium and the right ventricle. The valve only permits the blood to flow from the atrium to the ventricle (Healthline). The pulmonary valve is at the opening from the right ventricle in the pulmonary artery trunk. “The pulmonary valve moves the blood towards the lungs and keeps it from going back into the pulmonary artery” (Healthline). The mitral valve is between the left atrium and the left ventricle. This valve consents the blood to drift from the left atrium to the left ventricle. The mitral valve also has two flaps known as the bicuspid valve. The mitral valve is dissimilar from the other valves because while this valve has two flaps, the others have three. Lastly, the aortic valve is positioned at the departure of the left ventricle of the heart where the aorta instigates. The aortic valve lets the blood from the left ventricle to be evicted into the aorta. Without the help of these four valves, the blood would not properly flow through the heart and into the body.

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