Summary
Samenvatting organische fysiologie
- Course
- Institution
Samenvatting van lessen organische fysiologie
[Show more]
Seller
Follow
taliasener
Content preview
Organische chemie1 Het zenuwstelsel
- Centraal zenuwstelsel:
o Hersenen
o Ruggenmerg
- Perifere zenuwstelsel:
o Sensorische neuronen (afferente)
o Motorische neuronen (efferente)
Van zintuig → centraal ZS (hersenen) via de sensorische afferente zenuw
Hersenen → spieren in gang zetten via de motorische efferente zenuw
Naar invloed van de wil
- Willekeurig zenuwstelsel (animal)
o Het hart dat sneller klopt, zweten, spijsverteringstelsel, ademhalingsstelsel
je kan er niet op ingrijpen
- Onwillekeurig zenuwstelsel (vegetatieve, autonome of viscerale ZS)
o Ademhalen = onwillekeurig, maar je moet erop ingrijpen als er iets verkeerd loopt
Cellen van ZS:
- Neuronen (=zenuwcel)
- Gliacellen (=ondersteunende cel)
,Gliacellen: steunweefsel
- Schwancellen (myeline) rond axon draaien, isoleren voor een betere prikkelgeleiding
- Knopen van Ranvier, tss 2 cellen, ongemyeliniseerd
Elektrische signalen in neuronen
Rustmembraanpotentiaal
- Onevenwicht ionen intra/extracellulair (Na+, Cl-, Ca2+, K+)
- Verschillende membraanpermeabiliteit
- in neuronen = -70mV
- Ionstromingen → elektrische signalen
- Permeabiliteitswijzigingen/ionstromingen → elektrische signalen
,Actiepotentiaal
Triggerzone aan begin van axon, beslist of prikkel wordt doorgegeven of niet (beheerst
actiepotentiaal)
Voortbeweging van prikkels
Elektrische draad: 300 000 000 m/s
Zenuw: 1-100 m/s
,
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller taliasener. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.11. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now