Question 33 For blood going into pulmonary circulation, order the following events starting from the heart. Answers Blood becomes oxygenated. Blood from right atrium goes to the right ventricle Oxygenated blood returns to left atrium via pulmonary vein Deoxygenated blood brought in by vena cavaes enters the right atrium The right ventricle pumps blood via pulmonary artery to the right and left lung Selected Answer 1. Blood from right atrium goes to the right ventricle 2. The right ventricle pumps blood via pulmonary artery to the right and left lung 3. Oxygenated blood returns to left atrium via pulmonary vein 4. Blood becomes oxygenated. 5. Deoxygenated blood brought in by vena cavaes enters the right atrium
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Place the following steps of blood flow to and from the lungs into the correct order. Carbon dioxide in the blood from the heart diffuses out of the capillaries while oxygen from the airspace in the lungs diffuses into the capillaries. Deoxygenated blood is pumped into the pulmonary arteries that lead to the lungs. Deoxygenated blood flows into capillaries in the lungs that are in close contact with the air that enters the lungs. Deoxygenated blood coming from the body flows into the right atrium and then the right ventricle. Oxygenated blood flows to the left atrium of the heart.
Adi S.
Order the blood flow through the heart starting with blood being in the vena cava blood enters the right ventricle blood flows into aorta into the systemic circuit contraction of the right ventricle forces the right AV valve shut and the pulmonary valve open blood flows into pulmonary veins blood flows through opening of the right AV valve blood is oxygenated at capillary beds in lung alveolar tissues deoxygenated blood enters the right atrium contraction of the ventricles (left) forces the left AV valve to close and the aortic valve to open blood flows through opening of left AV valve blood flows to pulmonary arteries to lungs oxygenated blood enters the left atrium blood enters the left ventricle
All of the following are correct about the normal direction of blood flow EXCEPT (A) vena cava $\rightarrow$ right ventricle (B) right atrium $\rightarrow$ tricuspid valve (C) aortic semilunar valve $\rightarrow$ aorta (D) lungs $\rightarrow$ pulmonary vein (E) pulmonary vein $\rightarrow$ left atrium
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