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Open Circulatory System

Heart of frog...

Question

Heart of frog when removed from the body and placed in Ringer’s solution (a solution that is isotonic with blood), goes on beating for a long time. This shows that frog’s heart beat is

A

Rhythmic

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B

Neurogenic

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C

Myogenic

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D

Spontaneous

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Solution

The correct option is C
Myogenic

Heart of frog is myogenic. Myogenic contraction refers to a contraction initiated by the myocyte cell itself instead of an outside occurrence or stimulus such as nerve innervation.

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Similar questions

Q. Frog's heart when taken out of the body continues to beat for some time.
For the reason behind this, 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

Q. Assertion: The heart of frog continues to beat for some time when it is taken out of the body.

Reason: Frog's heart is myogenic in nature.

Q. 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.

Q. Frog's heart, when taken out of the body, continues to beat for some time.
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 auto-excitable

Q. Rate of heart beat in frog is

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