Question

ANSWER PLZZ..

1) Why are the walls of ventricles thicker than the auricles ?

2) Write any two functions of large intestine in man.​

Answer 1

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1]⏭️ The walls of ventricles are thicker than the auricles because ventricles have to pump the blood to all the parts of the body during their contraction. To counteract the backward pressure exerted by the blood, the walls of the ventricles have to be thicker otherwise it may lead to bursting of heart.

2]⏭️ Functions of large intestine in man are :

(I) It serves to store the unabsorbed food remnants temporarily.

(II) It concentrates the contents by absorbing water.

(III) The movements of colon help to void the faeces through anus.

Answer 2

Answer:

1] The walls of ventricles are thicker than the auricles because ventricles have to pump the blood to all the parts of the body during their contraction. To counteract the backward pressure exerted by the blood, the walls of the ventricles have to be thicker otherwise it may lead to bursting of heart.

2]Functions of large intestine in man are :

(I) It serves to store the unabsorbed food remnants temporarily.

(II) It concentrates the contents by absorbing water.

(III) The movements of colon help to void the faeces through anus.