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Summary

Samenvatting Schildklier

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Informatie over de schildklier

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  • October 31, 2021
  • 4
  • 2020/2021
  • Summary
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Anatomie pathologie
Hormonen

Homeostase: evenwicht
Hemostase: bloed stelpen


Hormoon bestaat uit:
 Eiwitten -> pepsidehormonen
 Steroïdhormonen (cholesterol) –> testosteron

 Brandstof: glucose

Hormoonstelsel werkt samen met het zenuwstelsel

Motorische zenuwcellen-> beweging

Neurotransmitters > dopamine, serotonine

Doelorganen:
- Hart
- Darmen

Hypofyse > vooraan de hersenen (in de buurt van de kruising van de oogzenuw)
FT4 > thyroxine (schildklierhormoon)
Schildklier > glandula thyreoïdea
TSH > thyreoïd stimulerend hormoon

 Veel hormonen in het bloed heeft een remmende werking op het TSH

Hypothalamus > baas over de hypofyse
Releasing hormoon -> komt van de hypothalamus -> hypofyse: harder of zachter
werken


Regulering van de hormoonafscheiding:
Van invloed op de hormoonafscheiding zijn:
- Hoeveelheid van een stof in het plasma
- Signalen uit de hypofyse
- Signalen uit het autonome (vegetatieve) zenuwstelsel
- Een ritme een schommeling in tijd
- Leeftijd
- Plaatselijke omstandigheden (voorbeeld zuurgraad van darminhoud)

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