Written by students who passed Immediately available after payment Read online or as PDF Wrong document? Swap it for free 4.6 TrustPilot
logo-home
Document preview thumbnail
Preview 1 out of 4 pages
Summary

Samenvatting 8- geintegreerde controle

Document preview thumbnail
Preview 1 out of 4 pages

Overzichtelijke samenvatting cursus 'systeemfysiologie' van prof Vermeersch - KULAK

Content preview

HF25: Geïntegreerde controle
 Geïntegreerde controle vh cardiovasculair systeem (CV)
Vorige HF:
- Systemische mech vr controle v BP & CO
- Lokale mech vr regling v bloedstroom
Dit HF:
- Sommige organen unieke tools vr regeling v hun circulatoire noden
o We bekijken nu hoe VC deze systemische, lokale & orgaan-spec mech integreert
 bij verandering
 v houding (liggen/staan)
 inspanning
 stress
 bloeding

1. Respons op rechtstaan
1. Ik lig neer
o Meeste gewicht & bloed in borstkas
2. Bij rechtzetten
o Bloed neiging om nr beneden te zakken (~zwaartekracht)
 BV & compliantie zorgen dat hart niet zonder bloed valt
o Er is meer onder dan boven hart
 netto: druk thv hart wil zakken
- MSFP (= gem systemische vullingsdruk) = 7mmHg

Bv. persoon v 1.80m groot
- Compliantie mens = iem met 5L bloed als we daar 100ml bijdoen
 druk gaat stijgen met 0.02mmHg stijgen

o Bij platliggen in evenwicht (A)
o Rechtstaan?  venen in benen gaan uitzetten
 Nieuwe hoogte vloeistof kolom = 1m (B)
 Hart draait droog (CO nr 0)  flauwvallen
 Moet zich dus herstellen
Waarom is dat dus in realiteit niet zo? (C)
- Minder veneuze pooling (500ml ipv 2200ml)
 OORZAKEN:
1. Initiele bloedvolume ongelijk verdeeld
o Meer bloed in buik dan in benen bv
2. Niet-uniforme uitrekking BV
Niet alle BV even uitrekbaar
3. Spierpomp & veneuze kleppen
4. Autonome reflexen
o In rust basale tonus id circulatie
 (als die wegvalt bij dwarsleasie
 makk hypotensie doen)
o Hersenen gaan zeggen bij rechtstaan: verhoog de tonus

Document information

Study
Uploaded on
September 26, 2019
Number of pages
4
Written in
2018/2019
Type
Summary
$7.12

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF

Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
phaedralocquet
4.3
(21)
Sold
152
Followers
87
Items
60
Last sold
1 year ago


Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions