bananas's version from 2015-05-20 03:49

Blood supply

Question Answer
Blood supply to medial portions of the cortex down deep in the longitudinal fissure along corpus callosumACA
Leg/foot region of Sensory homunculusACA
Foot region of Sensory homunculusACA
Leg region of Motor homunculusACA
Foot region of Motor homunculusACA
Blood supply to the lateral aspect of the primary motor and sensory cortexMCA
Bloody supply to Broca's AreaMCA
Face region of Sensory homunculusMCA
Hand region of Sensory homunculusMCA
Face region of Motor homunculusMCA
Hand region of Motor homunculusMCA
Blood supply to occipital lobe - visual cortexPCA
Expressive AphasiaMCA: Broca's Aphasia
Receptive AphasiaMCA: Wernicke's Aphasia
Blood supply to Broca's areaMCA
Blood supply to Wernicke's areaMCA
Hemianopia with macular sparingPCA
MCA suppliesUpper limb and Face: Motor and Sensory cortex
Temporal lobe: Wernicke's
Frontal lobe: Broca's
ACA suppliesLower limb and Face: Motor and Sensory cortex
PCA suppliesOccipital cortex, Visual Cortex
ASA suppliesLCST
Medial lemniscus
Caudal medulla: Hypoglossal
PICA suppliesLateral medulla
AICA suppliesLateral pons, Middle and inferior cerebellar peduncle
Contralateral paralysis and loss of sensationACA
Locked inBasilar artery: Pons and below
Wallenberg syndromePICA
- Dysphagia, Hoarseness, impaired Gag
- Ipsilateral face: Pain/temperature loss
- Contralateral body: Pain/temperature loss
- Vomting, Vertigo, Nystagmus
Medial medullary syndromeASA:
- Contralateral hemiparesis (upper/lower)
- Contralateral proprioception
- Tongue deviates ipsilateral
Lateral pontine syndromeAICA: "Facial droop means AICA's pooped"
- facial paralysis
- Decreased lacrimation
- Ipsilateral face: pain and temperature loss
- Contralateral body: Pain and temperature

Cranial nerves

Question Answer
CN nuclei V, VI, VII, VIIIPons
CN nuclei IX, X, XIIMedulla
CN nuclei XISpinal Cord
CN nuclei III, IVMidbrain
CN nuclei I, IIForebrain
Cribiform plateCN I
Unilateral Optive Nerve LesionNo vision in ipsilateral eye
Lesion of Optic ChiasmLoss of temporal vision in both eyes (bitemporal hemianopsia)
Lesion of Optic TractLoss of vision in contralateral visual field in both eyes (homonymous hemianopsia)
Macular degenerationLoss of vision in center of both eyes
PCA infarction (MCA spared)Loss of vision in contralateral visual field (Homonymous hemianopsia) with macular sparing
Superior orbital fissureCN III
Superior orbital fissureCN IV
Superior orbital fissureCN VI
Eye looks up when adducted CN IV lesion
Eye deviates mediallyCN VI lesion
Eye deviates down and out (lateral strabismus)CN III lesion
Pupil dilationCN III lesion
PtosisCN III lesion
Afferent pupillary defect CN II
Efferent pupillary defect CN III lesion
Afferent pupillary defectShine light in one eye,neither pupil constricts "Marcus Gunn Pupil"
Efferent pupillary defect Pupil will not constrict when light shown in contralateral eye
Mass lesion of CN III more likely to compressParasympathetic fibers
Ischemic lesion of CN III more likely to affectMotor output to EOM
Superior orbital fissureOpthalmic branch of CN V
Foramen rotundumMaxillary branch of CN V
Foramen ovaleMandibular branch of CN V
Corneal reflexCN V + VII
Closes jawTemporalis, Masseter, Medial pterygoid
Opens jawLateral pterygoid
Which nerves run through cavernous sinusCN III, IV, VI, V1 and V2
Which nerves run through the Internal acoustic meatusCN VII, CN VIII
Lacrimal glandCN VII
Submandibular glandCN VII
Sublingual glandCN VII
Parotid glandCN IX
Ipsilateral Facial ParalysisBell's Palsy - Facial nerve/nucleus lesion
Upper and lower Facial ParalysisBell's Palsy - Facial nerve/nucleus lesion
Contralateral Facial ParalysisFacial motor cortex lesion (stroke)
Lower face paralysis Facial motor cortex lesion (stroke)
Jugular foramenCN IX
Lesion to CN X or nucleus ambiguus - uvula deviates to......away from side of lesion


Question Answer
Motor innervation of tongueCN XII (Hypoglossal)
Taste to anterior 2/3 tongueCN VII (Facial)
Sensation in anterior 2/3 tongueV3 (Trigeminal, Mandibular)
Taste to posterior 1/3 tongueCN IX: Glossopharyngeal
Sensation in poster 1/3 tongueCN IX ( Glossopharyngeal)
Taste in extreme posterior of tongueCN X (Vagus)
Taste in extreme posterior tongue: nucleusNucleus solitarius (NOT nucleus ambiguus)
Anterior 2/3Sensation: V3 (Trigeminal, Mandibular)
Taste: VII (Facial)
Motor: XII (Hypoglossal)
Posterior 1/3Taste and Sensation: CN IX (Glossopharyngeal)
Motor: CN XII (Hypoglossal)
Lesion to hypoglossal nerve or nucleus - tongue deviatestoward side of lesion

Brain Lesions

Question Answer
Aphasia w intact comprehensionBroca's Aphasia
"Fluent" AphasiaWernicke's Aphasia
Aphasia with impaired comprehensionWernicke's Aphasia
Aphasia w intact comprehensionConduction Aphasia
"Fluent" AphasiaConduction Aphasia
Aphasia with poor repetitionConduction Aphasia
Aphasia due to lesion of arcuate fasciculusConduction Aphasia
Arcuate fasciculusTract that connects Broca's and Wernicke's area
Non-fluent aphasia AND Impaired comprehensionGlobal Aphasia
Lesion to non-dominant Broca's areaExpressive Dysprosody
Lesion to non-dominant Wernicke's areaReceptive Dysprosody
Lesion to dominant angular gyrus in parietal lobe (posterior, superior to Wernicke's area)Gerstmann syndrome
AgraphiaGerstmann syndrome
AlcalculiaGerstmann syndrome
Right-left disorientationGerstmann syndrome
Finger agnosiaGerstmann syndrome
Lesion to non-dominant parietal lobeHemispatial neglect
Frontal cortex lesionDishinibtion, Poor judgment, Reemergence of primitive reflexes
Prefrontal cortex lesionPt. unable to complete complex higher level tasks
Lesion to PPRF - eye deviates......away from side of lesion
Lesion to Frontal eye field - eye deviates......toward side of lesion
Lesion to superior colliculusParalysis of upward gaze (Parinaud's Syndrome)
Lesion to Reticular activating systemStupor and coma
Bilateral hippocampus lesionAnterograde amnesia
Destruction of mammillary bodiesWernicke-Korsakoff syndrome (Anterograde &or retrograde amnesia, ataxia, nystagmus, confabulation)
Bilateral amygdala lesionKl├╝ver-Bucy syndrome
Lesion to basal gangliaHypokinesis or hyperkinesis
Lesion to subthalamic nucleus of basal gangliaHemiballismus (involuntary flailing of arm)
Hemispheric cerebellar lesionIpsilateral movement problems
Cerebellar vermis lesionTruncal ataxia, dysarthria
spastic paralysisUMN lesion
flaccid paralysisLMN lesion
clasp knifespaciticity (UMN)
mutation in superoxide dismutase 1ALS


Question Answer
increased in ADPKD and Ehlers Danlosberry aneurysms
Pcomm aneurysmCN III palsy (down and out with ptosis and mydriasis)
ruptured berry aneurysmsubarachnoid hemorrhage
bitemporal hemianopiacompression of optic chasm by berry aneurysm
common between Acomm and ACAberry aneurysms
lenticulostriate vesselslacunar infarct
associated with HTNlacunar and charcot-bouchard
common in basal gangliacharcot-bouchard micro aneurysm (intracerebral hemorrhage)
intracerebral hemorrhagecharcot-bouchard
middle meningeal artery ruptureepidural
bridging veins rupturesubdural
blood between dura and skullepidural
lucid intervalepidural
fracture to temporal boneepidural
talk and die syndromeepidural
blood between dura and arachnoidsubdural
crescent shaped hemorrhagesubdural
crosses suture linessubdural
does NOT cross suture linesepidural
crosses falx tentoriumepidural
does NOT cross falx tentoriumsubdural
AV malformationsubarachnoid
xanthochromic spinal tapblood or yellow (subarachnoid)
amyloid angiopathyintraparenchymal hemorrhage
premature babiesintraventricular hemorrhage of germinal matrix
risk of vasospasm due to rebelledsubarachnoid
most vulnerable to ischemic hypoxiahippocampus (pyramidal neurons 3, 5, 6) and also cerebellum (parkinje)
ependymal cellsmake CSF
vitamin A excesspseudotumor cerebri
distorts fibers of corona radiatanormal pressure hydrocephalus
wet wobbly wackynormal pressure hydrocephalus
reversible hydrocephalusnormal pressure (reverses with VP shunt)