Exemplar Problems
Question:
How is respiration regulated?
Answer:
Regulation of Respiration: Respiration is regulated by various mechanisms to ensure the body receives an adequate supply of oxygen and maintains appropriate levels of carbon dioxide. The primary regulators of respiration include:
The medulla oblongata and the pons in the brainstem, which control the rate and depth of breathing. Peripheral chemoreceptors in the carotid and aortic bodies that sense changes in blood oxygen, carbon dioxide, and pH levels. Central chemoreceptors in the brainstem, sensitive to changes in cerebrospinal fluid pH primarily due to carbon dioxide levels. Feedback mechanisms that respond to signals from these receptors to adjust the respiratory rate and depth to maintain homeostasis in oxygen and carbon dioxide levels.
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