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Summary

Samenvatting practicum 15

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Overzichtelijke voorbereidingen van de practica, een combinatie van de practicumnota's en de slides. Structuren staan aangeduid op de preparaten, met telkens dezelfde weefsellagen aangegeven. Ideaal voor tijdens de practica, om de testjes te studeren en voor het examen!

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  • October 14, 2024
  • 5
  • 2023/2024
  • Summary
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BWL practicum 15: endocrien stelsel
08/12/2023
B24: Thyroïde-parathyroïde paard (HE)
THYROÏDE
Dun BW-kapsel
- Dunne trabekels
o Bloedvaten
Follikels




- Éénlagig kubisch tot cilindrisch epitheel
o Thyreocyten
- Centrale holte
o Opgevuld door kolloid
- Follikelcellen
o Hoog cilindrisch, basale kern → actieve fase
o Kubisch → inactieve fase
PARATHYROÏDE
- Oxyfiele cellen → niet zichtbaar
- Chromofiele cellen → hoofdcellen; polyedrisch, centrale
ronde kern
o Donkere → actief
o Bleke → inactief
- Steunbindweefsel
o Capillairen (afvoer van geproduceerde
hormonen

Opeenstapeling van cellen
+ resten van BW en vetweefsel

, B25: hypofyse rund (HE)
Verticale snede doorheen hypofyse
ADENOHYPOFYSE




Pars distalis
- Grootste gedeelte, kleurt iets roder
- Celrijk
o Acidofielen (sterk eosinofiel), basofielen &
chromofoben (kleuren beide amper)
= polyedrische endocriene cellen; centrale
ronde kern
Pars intermedia
- Basofielen & chromofoben (niet van elkaar te
onderscheiden)




HYPOFYSAIRE SPLEET
- Éénlagig afgeplat/kubisch epitheel
Pars tuberalis/infundibularis (anedohypofyse)
- Clusters epitheloïde cellen (vnl chromofoben)
- Doorsneden van de hypofysaire portale venen

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