Flashcards in Vagus Deck (61)
X carries ___ fibers
motor, parasymp, and sensory (including taste)
What is a major characteristic about X
X is the most important __________ n.
Cell bodies for motor nerves are located where
Nucleus Ambiguus receives sensory info from which hemisphere
Where do preganglionic paras fibers arise
Posterior nucleus of vagus
Where do pre para fibers indirectly receive info from
hypothalamus and carotid sinus
What tract do taste and visceroscensory info terminate
nucleus of solitary tract
What ganglia are associated with vagus
Superior and inferior ganglia
Superior ganglion aka
inferior ganglion aka
Somatic sensory info cell bodies located for X
What is X responsible for somatosensory
dura, auricle, external auditory canal, lateral tympanic membrane and muscosa of oropharynx and laryngopharynx
Where does somatosensory info from X terminate
spinal nucleus of trigeminal
Taste from cn X is carried to_________
superior part of nucleus solitary tract
where are the neurons for taste in cn X located?
Where does X carry visceral sensory info from?
larynx and laryngopharynx, viscera in hte thoracic and abdominal cavities, pressure receptors in the aortic arch and chemoreceptors in the para-aortic body
Apparent origin of X? as?
lateral aspect of MO as rootlets
Rootlets become trunk for X before X exits....
What branch of X supplies dura of posterior cranial fossa
what two nerves pass jugular foramen?
XI and X
where does X pass through jugular foramen
anterior to septum
What are X and XI surrounded by
meningeal sheath (arachnoid and dura)
Which ganglion is located in jugular foramen
Which ganglion is largern superior or inferior
Where is inferior ganglion located
just inferior to jugular formamen
What branch is given off at superior ganglion
explain course of auricular branch of X
-external auditory meatus
What does auricular branch carry/supply
sensory, from meatus and small portion of auricle