The sympathetic nervous system is the part of the autonomic nervous system that prepares the body for stress-related activities. Sympathetic nerves can maintain homeostasis by cooling the body's heart through sweating and regulating heart rate.
The parasympathetic nervous system is the part of the autonomic nervous system that works together with the sympathetic nervous system. The parasympathetic nervous system plays a role in saving the body's energy by returning the body's functions to homeostasis. The parasympathetic nervous system also plays an important role in maintaining mental and physical health by helping the body to cool down from stress reactions activated by sympathetic nerves.
Following are the differences function of the sympathetic and parasympathetic nerves.
The function of the sympathetic nerves is to increase blood flow to skeletal muscles, increase heart rate, rest and digestion, decrease urine output, fight-or-flight, and increase lung airflow.
The functions of the parasympathetic nerves are energy storage, activation of the digestive organs, contraction of the bladder wall, and decreased pulmonary airflow
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