Summary
Samenvatting Leerstof Gezondheidskunde mens en techniek jaar 1 periode 4
- Course
- Institution
Alle leerstof die ik gebruikt heb om in 1x mijn tentamen te halen.
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By: isannevanhalderen • 6 months ago
By: JxCx • 6 months ago
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Centraal zenuwstelselZenuwstelsel speelt een rol bij:
Gedrag
Regeling van processen in je lichaam
Centraal zenuwstelsel (CZS)
Grote hersenen
Kleine hersenen
Hersenstam
ruggenmerg
Perifeer zenuwstelsel (PZS)
Zenuwen naar bijv. vingers
1 = tussenwervelschijf
2 = wervel
3 = ruggenmerg
4 = ruggenmergszenuw
Witte stof: zitten gemyeliniseerde zenuwen in
,Voorwortel efferent / motorisch
Achterwortel afferent / sensorisch
Dermatomen / myotomen
Huid / spiergebieden
horend bij een ruggenmergsegment
geïnnerveerd door een wortel
, 1
2 1 = Schors → grijze stof → cellichamen van schakelcellen
2 = Merg → witte stof → uitlopers van schakelcellen
Grote hersenen
1. Sensorische centra:
impulsen verwerken
(+ bewustwording)
2. Motorische centra: ontstaan impulsen voor bewuste bewegingen
Andere onderdelen van grote hersenen:
Limbisch systeem: o.a. geheugen, emoties (in nauw contact met andere hersenonderdelen)
- Amygdala: angst, emotie
- Hippocampus: o.a. geheugen
- Thalamus en hypothalamus
- Reukhersenen
Contact van hypothalamus met hypofyse
, B+D,F,H en volgorde
Hersenen en ruggenmerg
• Omgeven door hersenvliezen
• Omgeven door liquor cerebrospinalis, ook door hersenen en kanaal in ruggenmerg
• Barrière: mechanische schokdemper
• Tegen micro-organismen
• Centrale kanaal
Cerebellum
Functies:
Coördinatie houding
• Evenwicht bij bewegingen
• Spierspanning (tonus)
• Vestibulo-oculaire reflex
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