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Double Circulation

Mark the stat...

Question

Mark the statements as true or false.

A. Systemic circulation starts from the left ventricle and ends in the right atrium.

B. Pulmonary circulation starts from the right ventricle and ends in the left atrium.

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Solution

A. Systemic circulation starts from the left ventricle and ends in the right atrium is a true statement

B. Pulmonary circulation starts from the right ventricle and ends in the left atrium is a true statement.

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Q. Assertion :Pulmonary circulation consists of flow of deoxygenated blood from right ventricle to the lungs and flow of oxygenated blood from lungs to the left atrium. Reason: Systemic circulation consists of flow of oxygenated blood from the left ventricle to all parts of the body and deoxygenated blood from different parts to right atrium.

Q. Complete the following passage:

Valves function to prevent backflow of blood and maintain a unidirectional circulation of blood within the body. The (i)__________ valve separates the right atrium from the right ventricle whereas the (ii)_____________ valve separates the left atrium and left ventricle. The (iii)___________ valve prevents the backflow of deoxygenated blood from the pulmonary artery into the right ventricle while the (iv)__________ valve prevents the backflow from aorta into the left ventricle.

Q. Explain the role of the following parts of the human circulatory system in circulation of blood.
a) Pulmonary artery
b) Pulmonary vein
c) Left ventricle
d) Right atrium

Q. Tina wants to know how the blood flows in pulmonary circulation. Help Tina to sort the following in the correct order of pulmonary circulation.

Right ventricle
Left atrium
Pulmonary artery
Pulmonary vein
Lungs
Pulmonary valve

Q. Complete the following passage:

Valves function to prevent backflow of blood and maintain a unidirectional circulation of blood within the body. The (i)__________ valve separates the right atrium from the right ventricle whereas the (ii)_____________ valve separates the left atrium and left ventricle. The (iii)___________ valve prevents the backflow of deoxygenated blood from the pulmonary artery into the right ventricle while the (iv)__________ valve prevents the backflow from aorta into the left ventricle.

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