Question

Select the correct answer. illustration of human heart. left and right lower sections are numbered 3 and 6. the left upper section numbered 2 (top) and left opening numbered 1. the right upper section with three openings numbered 7 and 2 passages below it numbered 4, 5. which numbers in the image represent the parts of the heart used to pump blood to the lungs? a. 5, 6, 7 b. 1, 4, 7 c. 2, 3, 4 d. 4, 5, 6

Answer 1

The heart's right ventricle (3), the pulmonary artery (4), and the outlet of the right ventricle into the pulmonary artery (5) are involved in pumping deoxygenated blood to the lungs for oxygenation. However, the right atrium, which also plays a crucial role, is not represented in the answer choices provided.

Step-by-step explanation:

The parts of the heart used to pump blood to the lungs correspond to the right side of the heart which is responsible for the pulmonary circulation. In the image you've described, these parts would include the right ventricle and the pathways leading to and from it. Specifically, the numbers that represent the right ventricle which pumps oxygen-depleted blood to the lungs, the pulmonary artery which carries it there, and the right atrium which receives the deoxygenated blood from the body would be numbers 3 (Right ventricle), 4 (Pathway to the lungs, which would be the pulmonary artery), and 5 (Outlet of the right ventricle into the pulmonary artery). Since we do not directly have the number that represents the right atrium, which should also be included when describing parts used to pump blood to the lungs, there seems to be a discrepancy in the options provided. Typically, the correct answer would include the right atrium, the right ventricle, and the pulmonary artery.

Answer 2

The correct answer is: b. 1, 4, 7 In the given description, the left opening numbered 1 represents the left atrium, which receives oxygenated blood from the lungs.

The right upper section with three openings numbered 7 represents the right atrium, which receives deoxygenated blood from the body. The passages below it numbered 4 and 5 represent the right ventricle, which pumps deoxygenated blood to the lungs. Therefore, the parts of the heart used to pump blood to the lungs are 1, 4, and 7.

Left Opening (Numbered 1): This represents the left atrium. The left atrium receives oxygenated blood from the lungs. After the blood has circulated through the body and released oxygen to the tissues, it returns to the heart, entering the left atrium.

Right Upper Section with Three Openings (Numbered 7): This represents the right atrium. The right atrium receives deoxygenated blood from the body. After the body's tissues have used up the oxygen in the blood, it returns to the heart, entering the right atrium.