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  3. Universiteit Antwerpen (UA)
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  5. Biomedische Wetenschappen
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  7. Systeemfysiologie

Exam (elaborations)

examenvragen cardiovasculair
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  • Course
  • Systeemfysiologie
  • Institution
  • Universiteit Antwerpen (UA)

dit zijn de open vragen (met antwoorden) voor het deel cardiovasculair die gesteld worden bij het examen systeemfysiologie van 2e bachelor biomedische wetenschappen aan de UA.

Last document update: 4 year ago

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Document information

  • May 23, 2020
  • June 13, 2020
  • 16
  • 2019/2020
  • Exam (elaborations)
  • Unknown

Subjects

  • examenvragen
  • systeemfysiologie
  • cardiovasculair

Written for

  • Universiteit Antwerpen (UA)
  • Biomedische Wetenschappen
  • Systeemfysiologie
All documents for this subject (33)

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Content preview

Open vragen CV

1. Bespreek de hartcyclus (basispatroon, LV cyclus,
verschil linker- en rechterhart + verhoging
hartritme)


De Trigger is een elektrisch signaal afkomstig van de sinoatriale knoop (SAN)
(1x/seconde) dat zich verder verspreidt over de atria (depolarisatie) naar de
atrioventriculaire knoop (AV-knoop) en zo over de ventrikels via bundels van His en
Purkinjevezels.


Pacemaker activiteit
 SAN: 80-90/min
 AV-knoop: 30/min
 Purkinjevezels: nog instabieler


Theorie: elk van deze weefsels kan een hartslag initiëren
Praktijk: enkel weefsel met hoogste frequentie (SAN) initieert de hartslag  triggert de
actiepotentiaal en de propagatie over het hart
ECG: elektrocardiogram
 P-golf = depolarisatie van atria (verandering in membraanpotentiaal)
 QRS-golf = depolarisatie van de ventrikels (repolarisatie van atria zit mee in QRS-
complex)
 T-golf = repolarisatie van de ventrikels
 QT-interval = reflectie van de duur van de atrioventriculaire actiepotentiaal
 U-golf niet altijd waargenomen wegens kleine omvang, deze golf staat mogelijk in
voor de repolarisatie van de Purkinjevezels of de repolarisatie van de papillaire
spieren  oorzaak van U-golf nog niet bekend

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