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Respiratory centre is situated bilaterally in medulla oblongata, while breathing is controlled by pneumotaxic and apneustic centres in pons varolii. Impulse for voluntary forced breathing starts in cerebral hemisphere.

1. Respiratory centre is situated in medulla oblongata.
2. Breathing is controlled by pneumotaxic and apneustic centres in pons varolii.
3. Impulse for voluntary forced breathing starts in cerebral hemisphere.
4. All of the above.

Correct answer: All of the above.

Solution

The respiratory centre is located in the medulla oblongata, while breathing is controlled by the pneumotaxic and apneustic centres in the pons varolii. Voluntary forced breathing starts in the cerebral hemisphere.

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