Parasympathetic Nervous Syster Flashcards
Which cranial nerves make up part of the parasympathetic division
Cn. III
Cn. VII
Cn. IX
Cn. X
What spinal chord levels contribute to the parasympathetic division?
S 2-4
What is the main pre-ganglionic neurotransmitter of the parasympathetic division?
Acetylcholine
* co-transmitters are ATP and neuropeptides
What is the main post-ganglionic neurotransmitter of the parasympathetic division?
Acetylcholine
Nitric Oxide
* co-transmitters are VIP, somatostatin, opioids, CGRP
What affect does parasympathetic stimulation have on pupillary diameter?
It decreases the pupil’s diameter
What affect does parasympathetic stimulation have on salivation?
It increases salivation
What affect does parasympathetic stimulation have on heart rate?
It decreases heart rate
Where are the pre-ganglionic nerve cell bodies of the Occulomotor nerve found?
Edinger-Westphal nucleus
Where are the post-ganglionic nerve cell bodies of the Occulomotor nerve found
Ciliary ganglion
Where are the pre-ganglionic nerve cell bodies of the Facial nerve found?
Superior Salivatory Nucleus - pontine tegmentum
Where are the post-ganglionic nerve cell bodies of the facial nerve found?
Submandibular and pterygopalatine ganglions
Where are the pre-ganglionic nerve cell bodies of the Glossopharyngeal nerve found?
Inferior salivatory nucleus - medulla
Where are the post-ganglionic nerve cell bodies of the Glossopharyngeal nerve found?
Otic ganglion
Where are the pre-ganglionic nerve cell bodies of the Vagus nerve found
Dorsal motor nucleus Nucleus ambiguous (for cells serving the heart)
Where are the post-ganglionic nerve cell bodies of the Vagus nerve found?
in the wall of the target tissue
