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unit 4- anatomy and physiology structure of the heart - Coggle Diagram
unit 4- anatomy and physiology
structure of the heart
superior vena cava
superior vena cava and inferior vena cava have the important function of carrying oxygen-poor blood to your heart's right atrium, where it moves into your right ventricle and then to your lungs (through your pulmonary artery) to trade in carbon dioxide for oxygen.
right atrium
receives oxygen-poor blood from the body and pumps it to the right ventricle. The right ventricle pumps the oxygen-poor blood to the lungs
pulmonary arterial valve
opens at the systolic phase of the cardiac cycle enabling the deoxygenated blood to be pumped from the right ventricle to the pulmonary circulation. It closes at the diastolic phase of the cardiac cycle, allowing sufficient filling of the right ventricle
tricuspid valve
controls the flow of blood from your heart's right atrium (top chamber) to the right ventricle (bottom chamber). Blood can leak backward into the atrium from the leaky tricuspid valve, causing your heart to pump harder to move blood through the valve.
right ventricle
The right ventricle pumps blood low in oxygen to the lungs. In the lungs, the blood then gets a "refill" of oxygen.
thick muscular wall
due to the intensive pressure of blood within the heart
aorta
pulmonary artery
pulmonary vein
left atrium
bicuspid (mitral) valve
aortic semi-lunar valve
left ventricle
muscles contracting inside the left ventricle helps produce a higher force to move the blood towards the system.