Boards facts Flashcards
Targets for DBS in Parkinsons
GPi and STN
Mechanism of dabigatran
Direct thrombin inhibitor
Mechanism of rivaroxiban, apixiban
Factor Xa inhibitors
Chronic progressive ophthalmoplegia with cardiac involvement
Kearns-sayres
PComm aneurysm CN effects
CN III lesions
sensory innervation to the shoulder as well as the teres minor and deltoid muscles
Axillary nerve (posterior cord, C5-C6)
responsible for stabilizing the scapula against the thorax
Serrates anterior (long thoracic nerve, C5,6,7 right off brachial plexus)
responsible for the first 15 degrees of shoulder abduction
Supraspinatus (suprascapular nerve, c5,6)
CSF analysis will show an elevated protein, low glucose, and an elevated lymphocytic-predominant white cell count
Cryptococcus, CD4<200!
Lasmiditan
Migraine abortive that targets 5HT-1F receptors , safe in CAD
Looks like Rathke’s cleft cyst, but calcified
Craniopharyngioma
acute denervation to the tibial (gastrocnemius) and deep peroneal (tibialis anterior) innervated muscles
Sciatic nerve proximal to knee
The only CMT with axonal (not demylenating) polyneuropathy
CMT 2
CIDP, Charcot-Marie-Tooth type 1A, and Refsum disease can have this finding appreciated on a sural nerve biopsy.
Onion bulbs
superior gluteal (gluteus medius) tibial (gastrocnemius), and tibialis anterior nerves
L5 radiculopathy, the most common radiculopathy
VPL
relay center for sensory information of the body
VPM
relay center for sensory information of the face as well as taste
superior colliculi, located in the midbrain, actually play a prominent role in
Visual system
Auditory pathway
Hair cells > cochlear nucleus > trapezoid body > ventral pons > superior olivary complex > inferior colliculi (midbrain) > thalamus
thalamic astasia
Unilateral thalami stroke imitating cerebellar stroke (full strength but can’t stand)
Thalamic aphasia
presents with a fluency-predominant deficit and less impressive difficulties with comprehension
inferior olivary nucleus in the medulla, the red nucleus in the tegmentum of the midbrain, and the contralateral dentate nucleus in the cerebellum
Mollart’s triangle, lesions cause palatial myoclonus
ipsilateral third nerve palsy with contralateral hemiparesis
Weber’s sydrome, medial midbrain
Lesion for Alexia without agraphia
Splenium of the corpus callous