Autonomic Nervous System (Parasympathetic & Sympathetic Divisions))
Dr. Matt and Dr. Mike's Medical Podcast
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Parasympathetic Nervous System
There are 12 cranal nerves that come out of your head. Yet, not all the cranial nerves have various functions. One nerve is parasympathetic - it causes pupils to constrict and change shape. Another has an ocular motor which can be used for reading or changing light coming into eyes.
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