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Samenvatting Het extrapiramidaal systeem

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Samenvattingen van het vak 'Neurale bewegingssturing en functioneringsproblemen' in 2e Bachelor Revalidatiewetenschappen en Kinesitherapie te UHasselt.

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Uploaded on
October 22, 2016
Number of pages
4
Written in
2016/2017
Type
Summary

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Hoorcollege 12: Het Extrapiramidaal Systeem
INLEIDING/ HET EPS

Motoriek

1) Piramidaal systeem
 grove kracht
 parese
 UMN-LMN
2) Extrapiramidaal systeem
 zorgt ervoor dat het andere systeem goed werkt
 automatisch bewegen
 goed starten
 begeleiden van een beweging, vlotheid & soepelheid

Nigrostriatale baan is de baan van de substantia nigra naar de basale ganglia (dorsale deel van het
striatum).

Directe en indirecte baan

De substantia nigra is een regulator (evenwicht direct en indirecte baan) die de directe baan gaat
stimuleren en de indirecte baan gaat inhiberen. Hierbij gaat de directe baan niet over de nucleus
subthalamicus, de indirecte baan doet dit wel en hierdoor krijg je inhibitie.

Extrapiramidaal bewegen = bewegen zonder cortex

Wanneer je hier een letsel hebt zal er geen verlamming optreden, wel veranderde tonus en tempo-
of automatisatie.

HYPOKINESIE

Parkinsonisme

Triade van symptomen

 Rusttremor
 Rigiditeit
 Hypokinesie

Oorzaken

1) Medicatie geïnduceerd (maligne neuroleptisch syndroom)
 medicatie met Dopamine Receptor Antagonisten, deze blokkeren de dopamine
receptoren
 Neuroleptica = bv. Haldol, Risperdal, Seroquel, Zyprexa, Dogmatil
2) Directe schade
 ischemisch (= vasculair Parkinsonisme)
 post-encephalitis
3) Toxisch
 CO-intoxicatie
4) Onderdeel van andere ziektebeelden
 Progressieve Supranucleair Palsy (PSP) = dementie + Parkinsonisme
 Multi-systeem-atrofie (MSA) = Parkinsonisme + piramidaal + cerebellair + autonoom

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