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

Exam (elaborations)

examenvragen endocrien stelsel
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  • Course
  • Systeemfysiologie
  • Institution
  • Universiteit Antwerpen (UA)

dit zijn de open vragen (met antwoorden) voor het deel endocrien stelsel 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 12, 2020
  • 10
  • 2019/2020
  • Exam (elaborations)
  • Unknown

Subjects

  • systeemfysiologie
  • examenvragen
  • open vragen
  • examen
  • endocrien stelsel

Written for

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

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Open vragen endo
1. Bespreek de adenohypofyse (3 hormonen naar
keuze).

De adenohypofyse is de anterieure kwab van de hypofyse en heeft 5 celtypen die tropische
hormonen aanmaken, opslaan en vrijstellen (hormonen die effect hebben op andere
endocriene klieren)
1) Corticotroop: ACTH
2) Somatotroop: GH
3) Thyrotroop: TSH
4) Gonadotroop: LH en FSH
5) Mammotroop: prolactine
De secretie wordt gereguleerd door een set van releasing en inhiberende hormonen die
worden geproduceerd in de hypothalamus en via de lokale bloedbaan naar de
adenohypofyse gaan.
De stimulatie van neuronen in de hypothalamus zorgt voor vrijstelling van hormoon
releasing/inhibiting factoren in de primaire capillaire plexus thv het infindibulum en gaat via
de portale venen naar de secundaire capillaire plexus thv de adenohypofyse = het
poortaderstysteem.



ACTH: adrenocorticotroop hormoon
ACTH wordt gemaakt uit pre-promelanocortine.

Functie
 Groei van bijniercortex reguleren
 Secretie van steroïde hormonen reguleren

Ziektebeelden
 Te veel ACTH  depressies
 Te weinig ACTH  functionele atrofie van de Hypothalamus/hypofyse/bijnier-as
 Addison disease
o Bijnier insufficiëntie
o Minder aanmaak van cortisol
o vermindering negatieve feedback  meer ACTH
o bijwerking: hyperpigmentatie aangezien er te veel MSH is  melanocyt
stimulerend hormoon is een bijproduct van de ACTH-synthese

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