100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Samenvatting H5: proprioceptie $0.00

Summary

Samenvatting H5: proprioceptie

 9 views  3 purchases
  • Course
  • Institution

Samenvatting slides + blokwijzer

Preview 2 out of 5  pages

  • April 16, 2023
  • 5
  • 2021/2022
  • Summary
avatar-seller
5. PROPRIOCEPTIE


5.1 INLEIDING


Proprioceptie
 Functie: zintuig dat ons bewust en onbewust vertelt waar lichaam en ledematen zich bevinden in
ruimte
 Omvat positiezin en bewegingszin
Ø Muv hoofd: geregistreerd door vestibulair systeem




5.2 PROPRIOCEPTOREN


Propioceptoren
 Meten spieractiviteit en positie gewrichten


Spierspoelen
 Als intrafusale spiervezels in // geschakeld met gewone extrafusale spiervezels
 Registreren kleine lengteverschillen via stretchgevoelige Piezo2-ionenkanalen
 Receptorpotentiaal ↑ met snelheid en amplitudo v uitrekking
 Ia-afferenten
Ø Draaien spiraalvormig rond centrale gebied spierspoel
Ø Geleiden dynamische én statische informatie
 Type II-afferenten
Ø Eindigen op hun intermediaire gebied
Ø Geven statische info door
 Aan polen spierspoelen komen gamma-motorneuronen toe
Ø Regelen gevoeligheid spierspoelen




1

, Figuur 5.1. Spierspoelen detecteren veranderingen in spierlengte. We onderscheiden dynamische
en statische kernzakvezels en kernketenvezels. Ia-afferenten bezenuwen de drie types, type II-afferenten
bezenuwen de kernketenvezels en statische kernzakvezels.




Golgi-peesorganen
 Omkapselde collageenbundels
 Gelegen op spier-peesovergang
 Gevoelig voor contractie
 In serie geschakeld met spiervezels
 Meten spierspanning en contractiekracht via Ib-afferenten




Figuur 5.2. Het Golgi-peesorgaan signaleert de kracht in de spier via Ib-afferenten
die gecomprimeerd worden door collageenvezels.




SA2-mechanoreceptoren
 In huid
 Registeren stretch  coderen zo positie vingers


Gewrichtsreceptoren
 In gewrichtskapsels en ligamenten
 Meestal verbonden met snel adapterende neuronen
 Gevoelig aan hoek, richting en snelheid v beweging in gewricht


2

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 gnkstdnt1. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $0.00. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

66579 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
Free  3x  sold
  • (0)