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Chemosensitive area of respiratory centr...

Chemosensitive area of respiratory centre in medulla is affected by

A

less `CO, and H^(+)` ions

B

less `O_(2) and H^(+)` ions

C

excess `CO_2 and H^(+)` ions

D

excess `O_(2) and H^+` ions.

Text Solution

Verified by Experts

The correct Answer is:
C
Human beings have a significant ability to maintain and noderate the respiratory rhythm to suit the demands of the body tissues. A specialised centre present in the medulla region of the brain called respiratory rhythm centre is primarily responsible for this regulation. A chemosensitive area is situated adjacent to the rihythm centre which is highly sensitive to `CO_(2)` and hydrogen ions. Increase in these substances can activate this centre, which in turn can signal the rlhythm centre to make necessary adjustments in the respiratery process by which titese substançes can be eliminated.
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Human beings have a significant ability to maintain and moderate the respiratory rhythm to suit demands of the body. For it we have Respiratory rhythm centre in medulla -R Pneumotaxic centre in pons -RT Chemosensitive area in medulla - C_(1) Peripheral chemoreceptors in aortic arch and carotid artery - C_(2) Find out the correct path for regulation of respiration.