Zoology/Zoology MCQS[NEET-2021 to 2022]--Cardiovascular System MCQs :- multiple choice questions and answers. e.g Zoology MCQS,Zoology Mock Tests , Zoology Practice Papers ,Zoology Sample Test,Zoology Sample questions

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Question 1: This is the reason why the SA node acts as heart’s pacemaker

because it has a poor cholinergic innervations

because it has a rich sympathetic innervations

because of its capability of generating impulses

 because it generates impulses at the highest rate

Total MCQS Questions are 49 in this paper Zoology MCQS[NEET-2021 to 2022]--Cardiovascular System
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