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samenvatting biologie regeling (zenuwstelsel en hormonen)

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2021/2022 Written for academic year
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samenvatting biologie over het zenuwstelsel en hormonen gaat onder anderen over zintuigen reacties zenuwstelsels impulsen ruggenmerg zenuwcellen en meer

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Samenvatting Biologie voor Jou Regeling
(Zenuwstelsel en hormonen) MAVO 3
5.1

Zintuig = orgaan dat reageert op prikkels uit de omgeving

Prikkel = invloed uit de omgeving van een organisme

In een zintuig zitten zintuigcellen > maken impulsen (= elektrisch signaaltje) > impuls
wordt doorgegeven aan zenuw > ruggenmerg en/of hersenen

Zenuwstelsel = centrale zenuwstelsel + zenuwen

Centrale zenuwstelsel:

 Grote hersenen
 Kleine hersenen
 Hersenstam
 Ruggenmerg

Functie zenuwstelsel = vervoeren en verwerken van impulsen

Zintuig > impuls via zenuw > ruggenmerg en/of hersenen > impuls via zenuw > spier
of klier reageert

5.2

Zenuwcel bestaat uit:

 cellichaam met celkern
 uitlopers > geleiden impulsen

3 soorten zenuwcellen:

 Gevoelszenuwcellen
o Geleiden van zintuig naar centrale
zenuwstelsel (CZ)
o Bevat 1 lange uitloper naar het
cellichaam toe
o Cellichaam ligt vlakbij CZ
 Bewegingszenuwcellen
o Geleiden impulsen van CZ naar
spier of klier
o Cellichamen liggen in het CZ
o Bevat 1 lange uitloper van het
cellichaam af
 Schakelcellen
o Geleiden impulsen binnen het CZ

Document information

Level
VMBO
School year
3
Uploaded on
April 7, 2021
Number of pages
4
Written in
2021/2022
Type
Summary
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Browse related subjects

Subjects

  • zenuwstelsel
  • hormonen
  • zenuwen
  • prikkels
  • zintuigen
  • grote hersenen
  • ruggenmerg
  • hersenstam
  • hersens
  • hersenen
  • cellichaam
  • zenuwcellen
  • cellichamen
  • impulsen
  • reactie
  • reacties
  • zenuwstelsels
  • hormoon
  • zenuw
  • prikkel

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