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NEET Biology Body Fluids and Circulation / शरीर के तरल पदार्थ और परिसंचरण Question Bank Self Evaluation Test - Body Fluids and Circulation

  • question_answer
    If heart of a mammal is injected with 2% \[CaC{{l}_{2}}\] solutions, then:

    A) Heart beat will increase.

    B) Heart beat will first increase then decrease.

    C) Heart beat will stop.

    D) No effect

    Correct Answer: C

    Solution :

    [c] Because excess of \[C{{a}^{++}}\] will increase the force of contraction, thereby causing spasm of cardiac muscles.


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