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Summary

Samenvatting bindweefsel (enkel bot)

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15-05-2017
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2015/2016

een samenvatting gemaakt over bot en botvorming. Deze leerstof valt onder 'Bindweefsel' maar is apart samen gevat.

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Samenvatting Bindweefsel: Bot
Opbouw door volgende componenten:

- Osteoblasten en osteocyten
- ECM met collageen en GAG’s = osteoid
- Zouten in het ECM
- Osteoclasten

Bouw




Er zijn twee types van bot:

- Spongeus, binnenste been.
o Mechanisch zwak
o Ongeorganiseerde collageen
o Is het primair bot (geproduceert na bv een trauma)
- Lamellair, botcortex
o Opgebouwd door osteonen

Cellen in het bot
1) Osteoprogenitorcellen

Stamcellen van het botweefsel. Ze zijn vooral aan het botoppervlak gelegen.

2) Osteoblasten

Produceren het osteoid -> collageen type I, GAG’s en proteoglycanen.
Ze hebben veel ruw endoplasmatisch reticulum (basofiel cytoplasma), voor de secretie.

3) Osteocyten

= Wanneer de osteoblasten staken met hun osteoidproductie, worden ze platter van vorm en
onderhouden ze het osteoid.
Ze zitten oa tussen de lammellen van het osteon.

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Uploaded on
May 15, 2017
Number of pages
3
Written in
2015/2016
Type
SUMMARY

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lailatruyen Universiteit Hasselt
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