Question

How is respiratory movements regulated in man?

Answer 1

Hint: The medulla that gives messages and the pons that regulate the rate of breathing to the muscles involved in breathing.

Complete Answer:
- Respiration is the release of oxygen to the cells inside the tissues from the outside environment, and the delivery of carbon dioxide in the same direction.
- The medulla oblongata in the brain comprises an area. This area is called the middle of the respiratory rhythm. The control of breathing is the responsibility of this area. There is indeed a pneumotaxic centre that can change the respiration process. In order to increase the lower inspiration rate, the signal is being sent to the rhythm centre.
- The chemosensitive area is susceptible to hydrogen ions and carbon dioxide near the respiratory core. This area therefore signals that the expiration rate for the removal of the compounds will change.
- In the aorta and carotid artery, there are receptors involved. These receptors are receptive and are able to identify blood levels of carbon dioxide and ions of hydrogen. The respiratory centre transmits nerve impulses for the requisite adjustments as the amount of carbon dioxide rises.

Note: Chemoreceptors may distinguish variations in blood pH that involve the correction of variations in spontaneous respiration. The pons' apneustic (stimulating) and pneumotaxic (limiting) centres operate together to regulate breathing rate.