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Samenvatting HC : neuro anatomie
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samenvatting HC neuro anatomie
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HC + OG 2 : Neuro anatomieIndeling zenuwstelsel
Functionele indeling
Anatomische indeling
- Centraal zenuwstelsel (CZS)
o Verwerkt, integreert en stuurt
o Hersenen
Grote hersenen/ cerebrun
Kleine hersenen/ cerebellum
Hersenstam
o Ruggenmerg
- Perifeer zenuwstelsel (PZS)
o Opvangen en doorgeven van prikkels
o Hersen- of craniale zenuwen
o Ruggenmerg- of spinale zenuwen
Hersenen
Oriëntatie
Centraal zenuwstelsel (CZS)
Grote hersenen/ cerebrum
- Eindhersenen = telencephalon
- Tussenhersenen = diëncephalon
- Functies
o Bewuste gedachten, gevoelens,
Opslaan en terug halen herinnerige, Complexe bewegingen
Hersenstam = truncus cerebri
- Middenhersenen = mesencamhalon
- Brug = pons
- Verlengde merg = medulla oblongata
Kleine hersenen/ cerebellum
Ruggenmerg = medulla spinalis
Beschrijving
- Telencephalon (linkerhemisfeer)
1
o Gyrus 2
Precentrale gyrus = motorisch (1)
5
Postcentrale gyrus = sensorisch (2) 3
o Sulcus
Sulcus centralis (3) 4
= scheiding motorisch en sensorisch
Sulcus lateralis (4)
= scheiding temporale kwab met de rest
Sulcus parieto- occipitalis (5)
= scheiding pariëtale kwab en occipitale kwab
o Fissure
, 3
(Centrale fissure = scheiding linker- en rechterhersenhelft)
- Telencephalon (rechterhemisfeer)
o Gyrus
Gyrus cinguli (1) 1
o Sulcus
Sulcus calcarinus (2)
Sulcus cinguli (3) 2
- Telencephalon (verdeling cortex in lobben)
o Lobus frontalis
Voorhoofdskwab
Somatisch motorisch
= plannen/ onderdrukken ongepast gedrag
o Lobus pariëtalis
Kruin- of wandkwab
Somatisch sensorisch
= lichaamsgewaarwordingen
Tast, ruik, smaak, properoceptie 5
o Lobus occipitalis 3
Achterhoofdskwab
Visuele cortex 4
o Lobus temporalis
Slaapkwab
Auditieve cortex (taal)
Emotie regulatie
- Infowerkwerking telencephalon (pijlen op figuur)
1. Primaire schors (donkere kleur)
6
= opnemen van ruwe info
Visueel, auditief en sensorisch
2. Secundair schors (lichtere kleur)
= verbindingen maken aan prikkels met een definitie
3. Tertiair gebied
= betekenis geven
4. Beslissing nemen
5. Motorisch handelingen doorgeven
6. Motorische handelingen uitvoeren
3
- Telencephalon (frontale doorsnede) 2
o Verbinding hemisferen door witte stof
= corpus callosum/ hersenbalk (1) 1
o Grijze stof
= cortex cerebri/ hersenschors (2)
o Witte stof
= medulla cerebri/ hersenmerg (3) 4
Associatie vezels
= projecteren info van primaire naar
Secundaire schors
Commissurale vezels
= versturen info van linker- naar rechterhersenhelft of andersom
Projectievezels
= projecteren info naar de hersennen of van de hersennen naar spieren of klieren
o Dieper gelegen grijze stof
= basale nuclei/ basale kernen (4)
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