Anatomy Flashcards
Brodman’s vision area?
17 (see an R movie)
What foramen does the ICA travel through?
foramen lacerum (rum on ICe)
Middle meningeal artery travels through what foramen?
foramen spinosum
What does V1 travel through?
V2?
V3?
V1: superior orbital fissure
V2: internal auditory meatus then stylomastoid foramen
V3: internal auditory meatus
What does the primary olfactory cortex consist of (two cortices) where?
Piriform cortex and Periamygdaloid cortex in ANterior temporal lobe.
Where do fibers from the olfactory cortex project?
to orbitofrontal, entorhinal cortex and medial dorsal nucleus of thalamus and hippocampus.
area which may cause olfactory hallucinations?
uncus
Muscles innervated by V3?
Muscles of mastication, Milohyoid, Anterior belly of digastric, Tensors (tympani and veli palatini) (If you try to masticate a mile of food, your belly becomes tense)
What supplies the posterior belly of the digastric?
CN VII
What is the oculocardiac reflex?
pressure on the eye causes bradycardia: think SVT
What is the only sensory neuron in the CNS instead of peripheral ganglia? What is it for?
Trigeminal’s mesencephalic for position sense of face
what is CN VII path?
out brainstem at cerebellopontine angle, travels through internal auditory meatus and facial canal, exits skull through stylomastoid foramen.
Ramsey Hunt involves what?
Zoster of geniculate ganglion.
spot of CN VII responsible for taste?
chorda tympani
A lesion where on CN VII will cause paralysis of facial muscles but preserved taste?
lesion of stylomastoid foramen, b/c taste fibers already through chorda tympani.
Lesion of CN VII where will preserve lacrimation?
after the geniculate ganglion and superficial petrosal nerve branch to ptergyopalatine ganglion.
Which receptors in the ear detect linear accelaration?
Angular acceleration?
Linear: utricle and saccule.
Angular: cristae in semicircular canals
Peaks in brainstem auditory evoked potentials and structures needed for hearing. (Acronym)
NCSLIMA:
- Nerve
- Cochlear nuclei (medulla)
- Superior olivary complex (pons)
- Lateral lemniscus (pons)
- Inferior collicululs (midbrain)
- Medial geniculate nucleus (thalamus)
- auditory radiations (thalamocortical)
* 8. Cortex: Heschl’s gyrus in temporal lobe)
Muscle associated with glossopharyngeal nerve? nucleus for nerve?
stylopharyngeus, motor nucleus is nucleus ambiguus
which way doe the right sternocleidomastoid turn the head?
to the left.
which way does the tongue point when protruded if lower lesion?
to the weak side. (tongue could Lick the lesion)
What is tolusa hunt syndrome? Treatment?
granulomatous inflammation of cavernous sinus with painful ophthalmoplegia. Treat w/ prednisone
Parts of the hypothalamus for appetite increase and decrease?
increase: lateral
decrease: ventromedial (destruction of this satiety center causes obesity)
part of hypothal producing dopamine?
arcuate
part of thalamus for circadian rhythm?
suprachiasmatic