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Blood relatively high in oxygen concentration is returned from the pulmonary circuit to the left atrium via the four pulmonary veins. From the left atrium, blood moves into the left ventricle, which pumps blood into the aorta. The aorta and its branches—the systemic arteries—send blood to virtually every organ of the body (Figure 20.5.3).
- Lindsay M. Biga, Sierra Dawson, Amy Harwell, Robin Hopkins, Joel Kaufmann, Mike LeMaster, Philip Mat...
- 2019
Blood flows through your heart, lungs and body in a series of steps. After delivering oxygen and nutrients to all your organs and tissues, your blood enters your heart and flows to your lungs to gain oxygen and get rid of waste. It then flows back to your heart, which pumps the refreshed blood out through your aorta to nourish your body again.
Apr 13, 2024 · Function: Pumps deoxygenated blood to the lungs for oxygenation via the pulmonary artery. Significant Details: The right ventricle has a shape somewhat like a crescent or a triangular pouch, with a wall thicker than the right atrium but thinner than the left ventricle. This is because it only needs to pump blood to the lungs, not the entire ...
The right side pumps deoxygenated blood to the lungs and the left side pumps oxygenated blood to the rest of the body tissues. This means that a red blood cell will travel through the heart twice ...
Oct 30, 2023 · Latin: Circulatio pulmonis. Definition. Circulatory circuit that carries deoxygenated blood from the right heart to the lungs for oxygenation and back to the left heart via pulmonary vessels. Structures. Right atrium, right ventricle, pulmonary trunk, pulmonary arteries, pulmonary veins. Function. Oxygenation of blood.
- Content Manager
- 13 min
Feb 24, 2023 · Figure 20.6.2 20.6. 2: Pulmonary Circuit Blood exiting from the right ventricle flows into the pulmonary trunk, which bifurcates into the two pulmonary arteries. These vessels branch to supply blood to the pulmonary capillaries, where gas exchange occurs within the lung alveoli.
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Key Points. Oxygen-depleted blood is pumped away from the heart via the pulmonary arteries. The lung’s capillaries line small sacs in the lungs called the alveoli. The alveoli are the site of oxygen and carbon dioxide exchange in the lungs. Air is inhaled through the nose or the mouth and fills the lungs. Oxygen passively flows from the air ...