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Question
In frog heart, there are cardiac muscles which consist of fibres called
In frog heart, there are cardiac muscles which consist of fibres called
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Solution
The correct option is A Purkinje fibres
The Purkinje fibres are specialized muscle cells in the sub - endocardial space of the heart, which conducts impulses from AV node to the ventricle for contraction. The frog's heart has 3 chambers - 2 auricles and 1 ventricle.Myonemes are contractile fibrils found in the cytoplasm of certain protozoans. The terminal branches of axons which contain neurotransmitters are known as telodendria. Columnae carnae are muscles found in the ventricles of heart which help in the pumping action of the heart. Thus, the correct answer is option A.
The Purkinje fibres are specialized muscle cells in the sub - endocardial space of the heart, which conducts impulses from AV node to the ventricle for contraction. The frog's heart has 3 chambers - 2 auricles and 1 ventricle.
Myonemes are contractile fibrils found in the cytoplasm of certain protozoans.
The terminal branches of axons which contain neurotransmitters are known as telodendria.
Columnae carnae are muscles found in the ventricles of heart which help in the pumping action of the heart.
Thus, the correct answer is option A.
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