ANATOMY

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GENERAL ANATOMY

ANATOMY OF THE HEART

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Arrange the structures in the following list in the order that blood will encounter as it flows from the output side to the input side of the cardiovascular flow circuit. 1. venules 2. arterioles 3. capillaries 4. elastic arteries 5. medium veins 6. large veins 7. muscular arteries
A
7, 4, 2, 3, 1, 5, 6
B
2, 7, 6, 3, 1, 5, 6
C
5, 6, 1, 3, 2, 7, 4
D
4, 7, 2, 3, 1, 5, 6
Explanation: 

Detailed explanation-1: -venules. arterioles. capillaries. elastic arteries. medium veins. large veins. muscular arteries.

Detailed explanation-2: -Blood comes into the right atrium from the body, moves into the right ventricle and is pushed into the pulmonary arteries in the lungs. After picking up oxygen, the blood travels back to the heart through the pulmonary veins into the left atrium, to the left ventricle and out to the body’s tissues through the aorta.

Detailed explanation-3: -The left ventricle of the heart pumps oxygenated blood into the aorta. From there, blood passes through major arteries, which branch into muscular arteries and then microscopic arterioles. The arterioles branch into the capillary networks that supply tissues with oxygen and nutrients.

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