Which nervous system slows respiration and heart rate?

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Multiple Choice

Which nervous system slows respiration and heart rate?

Explanation:
The parasympathetic division handles rest-and-digest actions, including slowing heart rate and respiration. It mainly uses the vagus nerve to release acetylcholine onto the heart’s SA and AV nodes, making those nodes fire and conduct impulses more slowly, which lowers heart rate. It also tends to reduce airway dilation and breathing rate as part of conserving energy. The sympathetic division would do the opposite by increasing heart rate and respiration to prepare for action, while the enteric system governs gut function and the somatic system controls voluntary muscles.

The parasympathetic division handles rest-and-digest actions, including slowing heart rate and respiration. It mainly uses the vagus nerve to release acetylcholine onto the heart’s SA and AV nodes, making those nodes fire and conduct impulses more slowly, which lowers heart rate. It also tends to reduce airway dilation and breathing rate as part of conserving energy. The sympathetic division would do the opposite by increasing heart rate and respiration to prepare for action, while the enteric system governs gut function and the somatic system controls voluntary muscles.

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