cerebral cortex Flashcards

(35 cards)

1
Q

convolutions

A

gyri

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2
Q

depressions

A

sulci

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3
Q

separates frontal from parietal

A

central sulcus (fissure of Rolando)

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4
Q

separates temporal from frontal

A

lateral sulcus

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5
Q

divides the brain into two hemispheres

A

median longitudinal fissure

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6
Q

between cuneus and precuneus

A

parieto occipital fissure

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7
Q

the parieto occipital fissure is between

A

cuneus and precuneus

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8
Q

divides occipital lobe into cuneus and lingual

A

calcarine fissure

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9
Q

the surface area of the cerebral cortex is increased by

A

convolutions

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10
Q

the cerebral cortex develops from the

A

pallium

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11
Q

2 divisions of pallium

A

paleo-/archipallium

neopallium

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12
Q

the neopallium is located b/n

A

hippocampus and the paleopallium

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13
Q

the paleopallium is located

A

lateral to the corpus striatum

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14
Q

the motor cortex contains a large amount of

A

pyramidal cells

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15
Q

sensory cortex is characterized by

A

granular cells

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16
Q

nerve cells of the cerebral cortex

A
  1. pyramidal cells
  2. stellate cells
  3. fusiform cells
  4. horizontal cells of cajal
  5. cells of martinotti
17
Q

large fusiform cells =

A

modified pyramidal cells

18
Q

smll multipolar cells present throughout the levels of the cortex

A

cells of martinotti

19
Q

layers of the cerebral cortex

A
molecular
external granular
external pyramidal
internal granular
internal pyramidal
multiform layer
20
Q

most superficial layer

A

molecular layer (plexiform layer)

21
Q

the molecular layer is located where

A

below the pia mater

22
Q

the external layer contains large number of

A

small pyramidal cells and stellate cells

23
Q

the external pyramidal layer is composed of pyramidal cells whose cell body size

A

increases from the superficial to the deeper borders of the layer

24
Q

this layer is composed of closely packed stellate cells

A

internal granular layer

25
the internal granular layer is composed of
closely packed stellate cells
26
the internal granular layer has a high conc of horizontally arranged fibers known as
External band of baillarger
27
myelinated fibers of this layer form the ________
internal granular; stripe of Gennari
28
the internal pyramidal layer gives rise to
corticospinal, corticobulbar, corticostriatal
29
giant pyramidal cells in the motor cortex of the precentral gyrus
Betz cells
30
the internal pyramidal layer contains a large number of horizontally arranged fibers that form the
internal band of Baillarger
31
different types of cortex based on number of layers
neocortex | allocortex
32
aka isocortex or homogenetic cortex
neocortex
33
the allocortex includes
paleocortex | archicortex
34
paleocortex includes
olfactory cortex
35
archicortex includes
hippocampus and dentate gyrus