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Heart

Match the fol...

Question

Match the following.

a. Ventricular systole i. Mixing of oxygenated and deoxygenated blood

b. Systemic circulation ii. Closure of bicuspid and tricuspid valves

c. Amphibians iii. Ventricular contraction and relaxation

d. Blood Pressure iv. Path of blood from the left ventricle to the rest of the body through aorta

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Solution

a-ii, b-iv, c-i, d-iii
Ventricular systole occurs during closure of bicuspid and tricuspid valves.
Systemic circulation is the circulation of blood from the left ventricle to the rest of the body through aorta.
Mixing of oxygenated and deoxygenated bood occurs in amphibians.
Ventricular contraction and relaxation creates blood pressure.

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iii. During the start of the ventricular systole the bicuspid and tricuspid valves close
iv. Due to the closure of the atrio-ventricular valves, dup sound is produced.

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B. Closure of atrio-ventricular valves during ventricular systole generates first heart sound.

Q. Read the following statements and select the correct option.
A. Damage to chordae tending of semilunar valves in aorta causes back flow of blood in left ventricle.
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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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