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Neuro 3 > Cortex 1 > Flashcards

Cortex 1 Flashcards

1
Q

Allocortex
Neocortex
Subcortical structures

A

Allo - less than 6 layers…hippocampus, piriform, cerebellar

Neo cortex - new

Subcortical - have no distinct layers

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2
Q

Superior temporal sulcus lines up with

Lateral can help ID

A

Angular gyrus

Supramarginal gyrus

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3
Q

Superior and inferior parietal lobules

A

Superior - higher sensory signals

Inferior - integrative language (LEft) and integrative spatial attention (right)

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4
Q

Cingulate sulcus becomes

A

Marginal sulcus

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5
Q

Orbital artery
Frontopolar artery
Callosomarginal artery
Pericallosal artery

A

Medial portion of orbitofrontal

Medial portion of frontal

Medial of frontal and parietal

Medial of frontal and parietal plus corpus callosum

All from anteriror that runs in long fissure

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6
Q 
Lateral orbitofrontal 
Anterior and posteiro parietal 
Angular 
Anterior, middle, and posterior temporal
Precentral and central
A

Lateral of orbitofrontal

Lateral parietal lobe

Parts of angular and supramarginal gyrus

Lateral temporal lobe

Lateral of frontal

All from middle that runs in lateral fissure

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7
Q

MCA and ACA deep branches

PCA deep branches

A

MCA - mid of BG and posterior IC

ACA - rostral BG and anterior IC

Thalamus and hypothalamus (subcortcial areas)

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8
Q

PCA supplies

A

MB, inferior and medial temporal, and occipital

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9
Q

Projection tracts
Association tracts
COmmimssural tracts

A

Corticospinal, corticonucleuar, corticostriatal, thalamocortical

COnnect cortical in same hemisphere

Connect across hemispheres

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10
Q

SLF
Arcuate fasciculus
Uncinate fasciculus
IFOF

Which project ot entorhinal

A

Frontal - parietal (superior longitudinal fasciuclus)

Wenicke to broca

Temporal pole to orbitofrontal

Inferior fronto-occipital fasciculus - occipital to frontal

SLF, uncinate and IFOF

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11
Q

Anterior commissure and corpus callosum

A

AC - L and R amygdalas and other anteiro temporal lobe

CC - has mulltiple sections

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12
Q

Rostrum
Genu
Body
Splenium of CC

A

Ventral prefrontal
Other prefrontal
Posteriro frontal and anterior parietal (motor and senosry cortex)
POsterial parietal, posterior temporal and occipital

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13
Q

Primary motor
Primary sensory
Primary visual
Primary auditory

Functions and BAs

A

precentral gyrus, voluntayr mvmt (4)

Postcentral gyrus…body and face sense (1,2,3)

Lingual gyrus and cuneus surrounding calcarine (17)

Tvs gyri of Heschl (41,42)

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14
Q

Anterior limb of IC

A

Proprioceptive between VA/VL and motor cortex

Limbic between anterior and mediodorsal nuclei and frontal lobe

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15
Q

Genu of IC

A

Corticonuclear tracts

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16
Q

posteior rlimb of IC

A

Sensorimotor
Ascending somatosensory to primary sensory cortex

Desceding motor to spinal cord (lateral corticospinal tract)

17
Q

Sublenticula and retrolenticular limb of IC

A

Sub - auditory from MGN to auditory cortex

Retro - visual from LGN to visual corte

18
Q

Ventral anterior nucleus

A

Signals to motor cortex from thalamus regarding muslce tone and contraction force

GPi (via lenticular fasciulus) —- VA (anterior limb of IC) – motor cortex

19
Q

Ventral lateral nucleus

A

VL relays signals to motor cortex related to muscle length

Interpose of cerebellum —- medulla — VL (anterior limb of IC) —- motor cortex

20
Q

Medial geniculate nucleus

A

Input from inferiro colliculus

Output - info regarding freq and sound to Heschl’s gyri

21
Q

LGN

A

Input from retina via optic tract

Output to primary visual cortex

22
Q 
Premotor
Sensory associated
Visual association
Auditory association
Frontal eye fields

Function and BA

A

Motor progrma for complex actions (6)

Higher sensory signals (like texture) related to touch (5,7)

Basic visual features into complex patterns (obejects, faces, letters) (18,19)

Wernicke’s area…processes peech sounds (22)

Control of gaze and saccades (8)

23
Q 
INferior parietal lobule 
Broca's area
Semantics 
Emotiona lcontrol
Working memory
Exec control

Functions and BA

A

Integrate auditory and visual language inputs (39,40)

Sequences and arrange auditory and visual language output (44,45)

Storehouse of learned knowledge about world (37, 20-22. 28)

(32, 23,24, 29)

Mainting short time info (9,46)

Problem solving, complex behavior and suppression of habituatual responses (10,11,47)

24
Q

EMotiona control and thalamus

A

Mediodorsla nucleus of thalamus (via anterior IC) —- orbitofrontal cortex

Regulates behavior

25
Q

Cognitive control and thalamus

A

Mediodorsal (anterior limb of IC) to DLPFC

Enable top-down exec functions

26
Q

Language dominance of left

A

PLanum temporale is large in the left

27
Q

Basic language network

A

Auditory sends to Wenicke’s area…Wernickes and visual association cortex send to IPL…IPL links together…Broca’s receives these codes via arcuate fasciculus…activates mout hand tongue region and also to hnd regions

28
Q

Wernickes aphasia
Broacs aphasia
Conduction aphasia

BAs and arteries

A

22,39, 40…cannot process…caudal MCA that also affects IPL

44,45…fluency decrease…rostral MCA

Lesion of arcuate fasciculus…cannot repeat words

29
Q

Alexia

A

Reduced ability to read wirtten language

Isolated lesion of inferior parietal lobule without damage to Wernick;es

Lesion to temporal pole is associated with surface alexia (can
‘t read colonel, island, pint)

30
Q

Brocas homologue
Wernicke homologue
IPL (on right)
Occipitotemporal cortex

A

Prosodic production
Prosodic comprehension
Spatial attention
Face recognition (can reslt in prospagnosia)

31
Q

Spatial hemi-neglect

A

Caudal MCA damage

Lesion of the right parietal lobe causes people to ignore left space…this does not work the other way aroudn

32
Q

Spatial hemi-neglect test findings

A

Will only draw lines htorugh stars on one side

Cannot copy or spontaneously draw

Neuro 3 (31 decks)

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