Answer :
Pupil constriction, Bronchoconstriction and Decreased heart rate indicates stimulation of the parasympathetic nervous system.
The parasympathetic nervous system (PSNS) is one of three divisions of the autonomic nervous system, along with the sympathetic and enteric nervous systems. The enteric nervous system is sometimes considered a component of the autonomic nervous system and other times as a separate system.
The parasympathetic nervous system derives its nerve fibers from the central nervous system. Several cranial nerves, including the oculomotor nerve, facial nerve, glossopharyngeal nerve, and vagus nerve, are examples of specific nerves.
In calm "rest and digest" situations, the parasympathetic nervous system predominates, whereas the sympathetic nervous system drives the "fight or flight" response in stressful situations. The primary function of the PNS is to conserve energy for later use and to regulate bodily functions such as digestion and urination.
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