The respiratory centre which regulates respiration is located in
Correct answer: B. Medulla oblongata
- A. Cerebellum
- B. Medulla oblongata
- C. Cerebral peduncle
- D. The vagus nerve.
Explanation
All options are explained below: a)Cerebellum:The cerebellum is primarily responsible for coordinating motor movements, balance, and muscle control. It is not the location of the respiratory center that regulates respiration. b) Medulla Oblongata:The medulla oblongata, specifically the medullary respiratory center, is the primary region in the brainstem responsible for regulating and controlling respiration. It plays a crucial role in the involuntary control of breathing, monitoring factors like blood gas levels and adjusting the rate and depth of breathing as needed. c) Cerebral Peduncle: The cerebral peduncles are part of the midbrain and are primarily involved in motor control and the relay of motor information. They are not associated with the regulation of respiration. d) The Vagus Nerve:The vagus nerve, or cranial nerve X, is involved in various functions, including parasympathetic control of the heart, lungs, and digestive system. While it plays a role in the regulation of respiration, it is not the central location where the respiratory center is located. Correct Option: B. Medulla Oblongata Summary: The respiratory center that regulates respiration is located in the medulla oblongata, a region in the brainstem. This center is responsible for controlling the rate and depth of breathing based on factors such as blood gas levels. The other options (A, C, and D) are not associated with the primary regulation of respiration in the body.
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About Respiration
The human respiratory system includes the air passages, lungs, alveoli and breathing muscles, while gaseous exchange explains how oxygen enters blood and carbon dioxide leaves it by diffusion. The effects of smoking include damage to cilia and alveoli, reduced gas exchange, chronic bronchitis, emphysema and increased risk of lung cancer.
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