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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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