1. Overzicht van de functie en de structuur van het zenuwstelsel .................................................................... 3
1.1 Anatomische opdeling van het zenuwstelsel ................................................................................................ 3
1.2 Drie algemene functies van het zenuwstelsel .............................................................................................. 3
1.2.3 Oefening ................................................................................................................................................ 4
2.1 Een neuron .................................................................................................................................................... 5
2.1.1 De bouw ................................................................................................................................................ 5
2.2 De neurogliacellen ........................................................................................................................................ 6
2.2.1 De functies ............................................................................................................................................. 6
2.2.2 Soorten neurogliacellen en de lokalisatie ............................................................................................. 6
3.1 Verloop van het actiepotentieel .................................................................................................................... 7
4. De synaps ..................................................................................................................................................... 8
4.1 De bouw van de synaps ................................................................................................................................ 8
4.2 Werking van de synaps ................................................................................................................................. 9
5.3 Pia mater .................................................................................................................................................... 11
7. De hersenen ............................................................................................................................................... 12
7.1 De hersenventrikels ..................................................................................................................................... 12
,8. Het ruggenmerg ......................................................................................................................................... 18
8.1 Anatomie van de doorsnede van het ruggenmerg ..................................................................................... 19
9.1 Algemene bouw van een zenuw ................................................................................................................. 20
9.2 Spinale zenuw ............................................................................................................................................. 21
Cervicale plexus ............................................................................................................................................ 22
Plexus brachialis ........................................................................................................................................... 22
1. n. axillaris......................................................................................................................................... 22
2. n. musculocutaneus ........................................................................................................................ 22
3. n. medianus ..................................................................................................................................... 22
4. n. radialis ......................................................................................................................................... 23
5. n. ulnaris .......................................................................................................................................... 23
Plexus lumbosacralis .................................................................................................................................... 24
1. n. obturatorius ................................................................................................................................ 24
2. n. femoralis...................................................................................................................................... 24
3. n. inshiadicus ................................................................................................................................... 24
a. n. tibialis ...................................................................................................................................... 25
b. n. fibularis communis .................................................................................................................. 25
Samenvatting................................................................................................................................................ 26
9.3 Hersenenzenuwen ....................................................................................................................................... 27
n. olfactorius................................................................................................................................................. 27
N opticus....................................................................................................................................................... 28
n. trigeminus ................................................................................................................................................ 28
n. facialis ....................................................................................................................................................... 29
n. vestibulocochlearis ................................................................................................................................... 29
,1. De inleiding ................................................................................................................................................ 42
2. Het oog – zien ............................................................................................................................................. 42
2.7 Zien ............................................................................................................................................................. 46
Gezichtsvelden ............................................................................................................................................. 47
Aandoeningen .............................................................................................................................................. 47
3. Het oor- horen en evenwicht ...................................................................................................................... 48
3.1 De anatomie ............................................................................................................................................... 49
Uitwendig oor ............................................................................................................................................... 49
Middenoor .................................................................................................................................................... 49
Inwendig oor ................................................................................................................................................ 49
Het slakkenhuis ........................................................................................................................................ 49
Het evenwichtsorgaan ............................................................................................................................. 50
4. De neus- ruiken .......................................................................................................................................... 52
4.1 De anatomie ............................................................................................................................................... 52
4.2 De reukstoornissen...................................................................................................................................... 53
5. De mond- smaak ........................................................................................................................................ 53
5.1 De smaken .................................................................................................................................................. 54
, Hoofdstuk 6: het zenuwstelsel
Alles wat beweegt heeft een zenuwstelsel. Het zenuwstelsel van
de mens is het meest complex.
1. Overzicht van de functie en de structuur van het
zenuwstelsel
1.1 Anatomische opdeling van het zenuwstelsel
Het zenuwstelsel bestaat uit 2 grote delen:
• Centraal zenuwstelsel
o Bestaat uit: encephalon en medeulla spinalis
o Integratiecentrumvan het lichaam
• Perifere zenuwstelsel
o Bestaat uit: 12 paar nervi cranialis en 31 paar
nervi spinalis
o Zorgt voor de informatiestroom tussen de
periferie en het centraal zenuwstelsel
De cauda equina: een bundel ruggenmergzenuwen zonder
ruggenmerg. Het is de zenuwbundel voor het onderlijf (benen). Ze treden uit op de foramen
intervertebralis.
Start thv conus medullaris en dus waar ruggenmerg stopt.
1.2 Drie algemene functies van het zenuwstelsel
Onderdeel van het Bestaat uit Functie
zenuwstelsel
Perifeer zenuwstelsel Hersenzenuwen en Sensoriek (sensorische
ruggenmergzenuwen banen)
Motoriek (motorische banen)
Centraal zenuwstelsel Hersenen en ruggenmerg integratie
De 3 belangrijke functies:
Sensoriek Integratie Motoriek
Sensoren of receptoren sturen Bevindt zich in het centraal Het centraal zenuwstelsel
informatie via afferente of zenuwstelsel bestuurdt effectoren via
sensorische banen naar het efferente of motorische
CZS banen.
Bevindt zich in het perifeer Afstemmen van een input en De soorten banen
zenuwstelsel een output Somatomotorische banen:
naar skeletspieren
3
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