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BIOLOGY

JAMB 2005 - Question 18

Biology 2005 JAMB Past Questions - Question 18: The function of the fluid-filled pericadium is to

Choose the most appropriate option for the gap .

The function of the fluid-filled pericadium is to

A: reduce the friction caused by the pumping movements of the heart

B: supply the heart with oxygen and nutrients

C: prevent disease organisms from attacking the heart

D: reduce the intensity of the pumping action of the heart

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Correct Answer

Explanation

AThe heart is covered by two layered toughmembranous bag calledpericardium. The space between the twolayered bag is filled with fluid. This fluid reduces the friction between theheart wall (ie cardiac muscles) and their surrounding tissues caused by thepumping action of the heart. The coronary arteries supply the heart with bloodcontaining oxygen and nutrients."