Autonomics of the Head and Neck Flashcards
What are the parasympathetic pathways involved with the oculomotor nerve?
Preganglionic cell bodies=Edinger-Westphal nucleus
Preganglionic fibers=Oculomotor nerve
Postganglionic cell bodies=Cilliary ganglion
Postganglionic fibers=Short cilliary nerves
What are the parasympathic functions affiliated with the oculomotor nerve?
Permits constriction of the pupil by the sphincter pupillae and accommodation by the cilliary muscles of the eye
How do sympathetic nerves reach the eye?
They travel up the cervical trunk and leave via white rami to form the carotid plexus. Fibers travel with the internal carotid to the ophthalmic artery
What are the sympathetic functions affiliated with the eye?
Promotes pupil dilation and diminishes accommodation
What are the parasympathetic pathways involved with the glossopharyngeal nerve?
Preganglionic cell bodies=Inferior salivatory nucleus
Preganglionic fibers=glossopharyngeal nerve–>tympanic nerve–>lesser petrosal nerve (through foramen ovale)
Postganglionic cell bodies=otic ganglion
Postganglionic fibers=auriculotemporal nerve
What are the parasympathetic pathways involved with the submandibular and sublingual glands?
Preganglionic cell bodies=superior salivatory nucleus
Preganglionic fibers=facial nerve–>chorda tympani (petrotympanic fissure)–>join with lingual nerve
Postganglionic cell bodies–>submandibular ganglion
Postganglionic fibers–>lingual nerve
What are the parasympathetic pathways involved with the lacrimal, palatine, and nasal mucosa?
Preganglionic cell bodies=superior salivatory nucleus
Preganglionic fibers=Facial–>greater petrosal (foramen lacerum–>pterygoid canal)
Postganglionic cell bodies=pterygopalatine ganglion
Postganglionic fibers=to lacrimal–>zygomatic; to nasal mucosa–>nasopalatine; to palate–>greater and lesser palatine
How do sympathetic nerves get to the pterygopalatine fossa?
They split from the carotid plexus and form the deep petrosal nerve; it unites with the greater petrosal nerve to form the Vidian nerve
