NEET Biology Breathing and Exchange of gases (Animal Respiration) Question Bank Self Evaluation Test - Breathing and Exchange of Gases

  • question_answer
    A person receives a serious cut on the back of the neck that is deep enough to severely damage the brain stem in the lower medulla. The respiratory effect of this type of wound would likely be:

    A) Catastrophic and it might result in a complete cessation of breathing.

    B) To reduce respiration to an irregular rhythm.

    C) To shift the oxygen-binding curve of haemoglobin to the left.

    D) To stimulate the production of additional diphosphoglyceric acid.

    Correct Answer: A

    Solution :

    [a] Cutting the brain stem below the medulla eliminates neural contact with the respiratory mechanism and could easily result in a complete stoppage of breathing.


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