FUNK CIS Flashcards
weakness of the right side of the face, unable to wrinkle the skin on the right forehead, unable to flare right nostril, raise corner of the right side of mouth, red eyes. where is the likely site of nerve damage
stylomastoid foramen
this is Bell’s palsy
lost SVE to muscles of facial expression
you have the red eye b/c you lost the facial expression muscle orbicularis oculi
what is the cause of ptosis, down and out eye, and dilated pupil eyeball
posterior cerebral artery aneurysm pushing on the oculomotor –> so it affects GVE-P first
loss of levator superioris
loss of oculomotor
there is no pupillary sparing so that means its not diabetic neuropathy
not edinger-westphal b/c that would just be parasympathetics
not stroke within met encephalon that would be mesencephalon
uncal herniation would cause these symptoms
what is the cause of a midline palate that hasn’t fused
lateral processes fail to fuse
broken hyoid bone can injure what nerve below the hyoid?
what are the symptoms
internal laryngeal (branch off superior laryngeal) nerve is damaged
Loss of cough reflex on the side of the lesioned nerve (afferent limb is the internal branch)
NOT atrophy of tongue musculature b/c that is hypoglossal
NOT impaired taste to the posterior tongue (1/3) b/c that is CN IX
Not loss of the gag reflex (because this is in by 9 and out by 10 specifically the vagal pharyngeal branches)
schwannoma of what nerve cells will cause pain along the lateral side of a patients face and tenderness over the parotid gland anterior to the ear and within the external acoustic meatus?
auriculotemporal
auriculotemporal nerve is compressing an artery because of a tumor. so which region/structure is most at risk of becoming ischemic
meninges of middle cranial fossa
NOT external ear b/c major blood supply is the superficial temporal, posterior auricular
NOT mandibular teeth b/c that is inferior alveolar artery off the maxillary artery
NOT temporalis b/c anterior and posterior deep temporal
Not upper lip b/c not infraoribital artery or facial artery
MVA with a male who hit his forehead
he reports that he has loss of vision in his left eye
which is true concerning this nerve?
optic nerve is damaged
this nerve contains a blood vessel which drains to the cavernous sinus (central retinal vein)
which of the following is a correct pairing of embryologic and adult structure?
ectoderm-lens
innner layer of optic cup- pigmented epithelium
neural ectoderm- sclera
optic stalk - CN III
Pharygneal arch 2 - superior oblique
surface ectoderm –> lens
Pharygneal arch 2 - superior oblique– > no doesn’t come from arches
what is kisselbach’s plexus
anterior ethmoidal
facial artery
greater palatine
sphenopalatine
what nerve goes through the sphenopalatine foramen with the sphenopalatine artery
nasopalatine
dysphagia due to a CN X lesion. what muscle of pharynx still works well
stylopharyngeus
fracture of internal acoustic meatus
what structure is most affected by this auricle of ear pharyngotympanic tube saccule tensory tympani tympanic membrane
saccule ***
–> organ containing otolith and innervated by CN VIII
not auricle of ear–> innervated by lots of things (greater auricle, vagus, temporal, facial)
not pharyngotympanic tube–> glossopharyngeal
tensor tympanic–> V3
-hyperacusis
tympanic membrane CN V and X externally, CN IX internally
a cotton swab is poked at the cornea of the right eye and the eye does not blink
which nerve is impaired
corneal reflex
in by V1 (ophthalmic division)
-nasociliary
out by VII (blinking)
malformation of the otic placode would result in impairment of what?
hearing
where would you give anesthetic to dulle patients pain with a laceration across his chin?
mental- b/c it is just the mental branch supplying the chin
don’t need to anesthetize anymore
