Key result
Cutting the carotid sinus nerve, but not the aortic depressor nerve alone, led to a periodic loss of rhythmic respiration, while sinoaortic denervation produced a more severe disturbance.
In infant rats, the carotid sinus nerve plays a critical role in maintaining rhythmic respiration and responding to airway occlusion, whereas the aortic depressor nerve alone does not.
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Caution against clinical translation in neonates; extends animal data on peripheral chemoreflexes but leaves open human relevance.
Myron A. Hofer (1986) studied Respiratory control. Cutting the carotid sinus nerve (CSN) and/or aortic depressor nerve (ADN) vs. Cutting ADN alone was evaluated on Rhythmic respiration and response to airway occlusion. Cutting the carotid sinus nerve, but not the aortic depressor nerve alone, led to a periodic loss of rhythmic respiration, while sinoaortic denervation produced a more severe disturbance.
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