Cortex Cerebri Flashcards

1
Q

Hvorfor har vi mange foldninger og fordybninger i hjernen?

A

Fordi det er med til at øge overfladen og dermed får vi flere neuroner.

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2
Q

Hvilke forskellige cortex findes der ?

A

Motorisk, sensorik, syns, høre osv….

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3
Q

Anatomisk indling af CNS

A

Encephalon-> cerebrum -> truncus encephalon –> og medulla spinalis

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4
Q

PNS nævn opdelingen

A

12 par karnie nerver

31 par spinalnerver og alle dets forgreninger.

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5
Q

Nævn de 4 lapper

A

Frontal parital occipital og temporal lapperne

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6
Q

Hvad er cerebrum?

A

Storehjernen

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7
Q

Hvad inddeles cerebrum i ?

A

De 2 hemisfære

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8
Q

Nævn de foldninger der er i cerebrum

A

Fissurer (store spalter)
Sulci (små spalter)
Gyri (volde)

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9
Q

hvad adskiller de to hæmisfære?

A

Fissura longitudinalis cerebri

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10
Q

hvad adskiller lille hj og store hj?

A

Fissura transversa cerebri

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11
Q

Nævn de 3 sulci

A

Sulcus centralis
Sulcus lateralis
Sulcus parieto-occipitalis

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12
Q

hvor deler de 3 sulci

A
  • Sulcus centralis deler frontallappen fra parietallappen.
  • Sulcus lateralis deler frontallappen fra temporallappen.
  • Sulces parietooccipitalis deler parietallappen fra occipitallappen
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13
Q

Hvad er gyri?

A

Det er voldene

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14
Q

hvad hedder hjernebjælken

A

Corpus callosum. Den forbinder de to hæmisfærer

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15
Q

Nævn de 3 ledningsbaner

A

Projekttionsfibre associationsfibre og kommissuralfibre

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16
Q

Hvad forbinder projektionsfibre?

A

Forbinder cortex cerebri med lavere liggende strukturer i CNS