Anatomy
The cells that myelinate nerves in PNS
What is schwann cells?
The tract responsible for fine touch, vibration and proprioception
What is dorsal column?
Sensorineural hearing loss is
What is defective inner ear components or neural signaling to auditory cortex
The 2 structures of the lentiform nucleus
What is putamen and globus pallidus?
The channels that open or close to allow for depolarization of the auditory nerve
What is K+ channels?
These symptoms are consistent with a ____ lesion:
What is UMN?
What is the frontal and superior parietal lobes and contralateral lower limb?
The length of stereocilia are ___ closer to the oval window to allow for ___ frequency sounds.
What is shorter and higher frequency?
A CT of a brain with Alzheimers disease could show
What is cerebral atrophy and widened 3rd ventricle?
Occlusion within this artery can result in the pt. appearing comatose while remaining fully conscious
What is the basilar artery resulting in pontine ischemia?
The ___ allows the eyes to remain fixed on object while head is moving
What is the vestibulo-ocular reflex?
Characteristic findings in a CSF analysis in a pt. with GBS
What is normal amount of WBCs and elevated CSF protein?
Three branches of the basilar artery
What is anterior inferior cerebellar artery, labryinth arteries, pontine arteries, superior cerebellar artery?
The auditory pathway when the auditory nerve depolarizes is (describe the pathway with naming at least 3 structures)
vestibulocochlear nerve --> cochlear nucleus --> olivary nucleus (can decussaate to contralateral) --> inferior colliculus --> medial geniculate --> audtiory receiving centers
Three red flags for hearing loss
What is sudden hearing loss, hx of head trauma/trauma of the ear, progressive/worsening focal neuro symptoms?