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Samenvatting AFP Zenuwstelsel, Kennisweek 1, OP4, jaar 1 (OVK14GPK01) $3.80   Add to cart

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Samenvatting AFP Zenuwstelsel, Kennisweek 1, OP4, jaar 1 (OVK14GPK01)

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Samenvatting van AFP zenuwstelsel, kennisweek 1, OP4, leerjaar 1. OVK14GPK01

Last document update: 2 year ago

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  • May 11, 2022
  • May 22, 2022
  • 7
  • 2021/2022
  • Summary

6  reviews

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By: rudellen • 1 year ago

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By: zokrijthe • 1 year ago

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By: SandraVerpleegkunde • 2 year ago

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By: rumeesss • 2 year ago

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By: SandraVerpleegkunde • 2 year ago

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nice and clear summary.

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By: ElizeHBOV • 2 year ago

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It's a nice, compact summary that shows the key points about the nervous system!

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Zenuwstelsel
Deel II (Deel I → OP3)

Samenvatting AFP Kennisweek 1, OP4

Inhoud
Centraal zenuwstelsel (CZS) .................................................................................................................... 2
Trunchus cerebri.................................................................................................................................. 2
Functies ........................................................................................................................................... 2
Formatio reticularis ......................................................................................................................... 2
Thalamus ............................................................................................................................................. 3
Functie ............................................................................................................................................. 3
Bewustzijn ............................................................................................................................................... 4
Inhoud ............................................................................................................................................. 4
Helderheid ....................................................................................................................................... 4
Oorzaak bewustzijnstoornissen....................................................................................................... 4
Coma.................................................................................................................................................... 4
Glassgow-comaschaal /EMV-score ................................................................................................. 4
Oorzaak............................................................................................................................................ 4
Limbische systeem .................................................................................................................................. 5
Functies ............................................................................................................................................... 5
Verslaving ................................................................................................................................................ 6
Verslavende middelen ......................................................................................................................... 6
Oorzaak van verslaving........................................................................................................................ 7

, Centraal zenuwstelsel (CZS)
Grote hersenen, kleine hersenen, hersenstam en het ruggenmerg

1. Cerebrum → grote hersenen
2. Cerebellum → kleine hersenen
3. Trunchus cerebri → hersenstam
a. Middenhersenen
b. Pons
c. Medulla oblongata
4. Medulla spinalis → ruggenmerg
5. Foramen magnum

Sensorische prikkels. Ascending (opstijgende) tracts.
Afferent naar de hersenen toe.

Motorische prikkels. Descending (afdalende) tracts.
Efferent van de hersenen af.



Trunchus cerebri
Hersenstam

Functies
• Regulatie van hartslag
• Vasomotorisch centrum → regelt de omvang van de bloedvaten (denk aan vasoconstrictie en
vasodilatatie).
• Regulatie ademhaling
• Temperatuurregulatie
• Braakregulatie
• Paraatheid en bewustheid

Formatio reticularis
De functionele kern van de hersenstam. = diffuus netwerk van korte neuronen over de hele lengte
van de hersenstam.

Functie

Dit centrum reguleert het functieniveau van het CZS, de staat van paraatheid. Daartoe ontvangt het
informatie (afferent) uit de zintuigen, bewegingsapparaat enz. Omgekeerd staat de formatio
reicularis in verbinding (efferent) met de grote hersenen, tussenhersenen en het ruggenmerg.

ARAS

Afferenten: Ascenderende Reticulaire ActiveringsSysteem → opstijgende

Actief bij alertheid

DRAS

Efferenten: Descenderende Reticulaire ActiveringsSysteem → dalende

Schade aan de ARAS en DRAS → daling van de bewustheid of bewusteloosheid.

Actief bij wegzakken van bewustzijn → slaap

2

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