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The respiratory centre A. Is in the hypothalamus. B. Sends impulses to inspiratory muscles during quiet breathing. C. Sends impulses to expiratory muscles during quiet breathing. D. Is involved in the swallowing reflex. E. Is involved in the vomiting reflex. |
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Answer» A. False The stretch receptors in internal carotid arteries are carotid sinus baroreceptors; the carotid bodies are separate structures nearby. B. False They have the greatest flow rate/unit volume yet described in the body. C. True They are not excited in anaemia where PCO2 is normal but O2 content is low. D. True Acidosis stimulates ventilation. E. True When carotid and aortic bodies are denervated, hypoxia depresses respiration. |
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