The nervous system plays a crucial role in maintaining homeostasis in the respiratory system by releasing several key chemicals. Primarily, it releases neurotransmitters like acetylcholine, which stimulates the diaphragm and intercostal muscles for breathing. Additionally, the autonomic nervous system regulates the release of hormones such as adrenaline (epinephrine) and norepinephrine, which can adjust the respiratory rate in response to stress or changes in oxygen and carbon dioxide levels. These chemical signals help ensure that the body's oxygen demands are met and carbon dioxide levels are regulated.
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