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Samenvatting Hersenen
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Samenvatting van 6 pagina's voor het vak Biopsychologie aan de PXL
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sterredriesen1
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, HersenenCerebrum = telencephalon + diencephalon
grote hersenen links - rechts tussen hersenen
Fissure longitudinalis cerebri = scheidt linker en rechterhelft
Corpus collosum (hersenbalk) = verbindt linker en rechterhelft
Telencephalon: complexe functies = 2 helften
Hersenschors: buitenkant telencephalon
Bevat grijze stof / hersenstof -> alle complexe functies in de hersenen - informatieverwerking
• sulci = ondiepe groeven
• fissuren = diepe groeven
• gyrus = plooien
Door deze plooien en groeven neemt het hersenoppervlak toe -> hogere transmissiesnelheid & complexere neurale verbindingen
Bevat witte stof / hersenmerg -> kabels van informatie - informatie-uitwisseling
• associatievezels = binnen dezelfde hersenhelft
• commussirale vezels = door hersenbalk naar linker/rechterhelft
• projectievezels = sensorisch-motorische baan -> gaat tot in hersenschors
Witte laag = vetten = isolerende laag rond zenuwbanen en vezels, deze laag is nodig om signalen door te geven
Frontale kwab:
Centrale sulcus
• primaire motorische schors
• handelingen uitvoeren Pariëtale kwab:
• primaire somatosensorische schors
• somatosensorische info, tastzin, lichaamspositie
Pariëto-occipitale sulcus
Occipitale kwab:
• primaire visuele schors
• ruwe visuele informatie komt binnen
Laterale sulcus
Temporale kwab:
• primaire auditieve schors Secundaire schorsen = associatie gebieden -> info herkenning
Tertiare schorsen = informatie internaliseren
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