circulatory system blood flow

- The diagram to the right shows the overall flow of blood through the circulatory system. - Deoxygenated blood travels into the right side of the heart (the left side of the heart in the diagram). Blood flows from the right side of the heart to the lungs where it will be oxygenated. Oxygenated blood then flows to the left side of the heart (the right side in the diagram) where it is pumped to tissues of the body.

- The superior vena cava and inferior vena cava are veins that deliver deoxygenated blood from the body to the right atrium of the heart. From the right atrium, the blood passes through the atrioventricular valve, which opens in response to contraction of the heart, and into the right ventricle. Blood then flows from the right ventricle through the semilunar valve and out of the heart through the pulmonary arteries. The pulmonary arteries deliver blood to the lungs where it will get oxygenated.

- The pulmonary veins deliver oxygenated blood from the lungs to the left atrium. From the left atrium, blood passes through the atrioventricular valve into the left ventricle. Blood then flows from the left ventricle through the semilunar valve of the left side of the heart and out of the heart through the aorta. Blood will flow from the aorta to the tissues of the body.

Which of the following is not a function of the transport (circulatory) system?

- removal of waste within multicellular organisms

Label the major vessels on the diagram below.

i. aorta ii. anterior vena cava iii. pulmonary artery iv. pulmonary vein

12.4.5 Structure of the Human Heart Flashcards by Irina Soloshenko

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12.4.5 Structure of the Human Heart Flashcards

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