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Question
In frog's heart, there are cardiac muscles, which consists of fibres called
In frog's heart, there are cardiac muscles, which consists of fibres called
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Solution
The correct option is B Purkinje fibres
The heart wall of frog is composed of epicardium, myocardium, and endocardium. The myocardium is composed of branched and striated yet involuntary cardiac muscles which contracts and relax rhythmically at a fixed rate. The fibres of the self-excitatory and conducting muscle of the heart are of three types, namely nodal fibres, transitional fibres, and Purkinje fibres.Thus, the correct answer is option A.
The heart wall of frog is composed of epicardium, myocardium, and endocardium. The myocardium is composed of branched and striated yet involuntary cardiac muscles which contracts and relax rhythmically at a fixed rate. The fibres of the self-excitatory and conducting muscle of the heart are of three types, namely nodal fibres, transitional fibres, and Purkinje fibres.
Thus, the correct answer is option A.
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