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Frog's heart when taken out of the body ...

Frog's heart when taken out of the body continues to beat for sometime .
Select the best option from the following statements .
I . Frog is a poikilothem .
II . Frog does not have any coronary circulation.
III . Heart is autoexcitable .

A

Only III

B

Only IV

C

I and II

D

III and IV

Text Solution

Verified by Experts

The correct Answer is:
d
Frog heart is myogenic and autoexcitable. In this conditions, contraction of the heart originates within the muscles itself. When muscles are contracting. They are releasing heat, which keeps the electrochemical reactions in muscles going so the muscles of heart keep contracting after the removal of heart from the body.
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Frog's heart when taken out of the body continues to beat for sometime Select the best option from the following statements (A) Frog is a poikilotherm (B) Frog does not have any coronary circulation (C) Heart is "Myogenic" in nature (D) Heart is autoexcitable

Rrog's heart when taken out of the body continues to beat for sometime. Select the best option from the following statements. (a) Frog is poikilotherm (b) Frog does not have any coronary circulation (c ) Heart is "myogenic" in nature (d) Heart is autoexcitable

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