Cranial Nerves Flashcards
What nerves exit in the midbrain?
III, IV (oculmotor and trochlear)
What nerves exit in the pons?
V, VI, VII, VIII (5-8)
What nerves exit in the medulla?
IX, X, XI, XII
What nucleus sits just above the trochlear in the midbrain?
the Edinger-Westphal
What nucleus does the facial nerve utilize for special sensory?
solitary nucleus to innervate the anterior 2/3 of the tongue
What nucleus does the facial nerve use to salivate?/
superior salivatory nucleus
What nucleus does the facial nerve use to express facial emotions?
Facial motor nucleus
Your patient cannot smile on the right or lift their eyebrows on the right, where is the lesion?
PNS lesion on the ipsilateral side
What comprises the inner ear?
bony labyrinth and membranous labyrinth
Perilymph and endolymph are found in which structure of the inner ear?
membranous labyrinth
Symptoms involving the inner ear include
hearing loss, tinnitus, spinning sensation, balance problems, nystagmus
The ability to maintain vision when the head moves
vestibuloccular reflex; meaning your eyes turn in the opposite direction of your head
The glossopharyngeal uses what nucleus to innervate the tympanic cavity, auditory tube and laryngopharynx?
spinal nucleus V
This nerve uses the caudal half of the solitary nucleus
glossopharyngeal to carry innervation to the carotid body and carotid sinuses
innervation of the pharynx uses what nucleus?
ambiguus
