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Samenvatting Weefsels H3: Eigenlijk bindweefsel $3.32   Add to cart

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Samenvatting Weefsels H3: Eigenlijk bindweefsel

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Samenvatting gebaseerd op slides van professor Vral met bijhorende notities van in de les, alles wat je voor de theorie moet kennen van dit onderdeel.

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  • March 30, 2024
  • 13
  • 2022/2023
  • Summary
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Samenvatting bind -en
steunweefsels: eigenlijk
steunweefsel
Inhoud
1.1 Inleiding bind – steunweefsels..........................................................................................................2
1.2 Inleiding eigenlijk bindweefsel..........................................................................................................2
1.3 Cellen................................................................................................................................................3
1.3.1 Cellen voor aanmaak en onderhoud..........................................................................................3
1.3.1.1 Mesenchymcellen...............................................................................................................3
1.3.1.2 Fibroblasten en fibrocyten..................................................................................................3
1.3.2 Cellen voor reserve en isolatie...................................................................................................4
1.3.2.1 Vetcellen.............................................................................................................................4
1.3.3 Verdedigingscellen.....................................................................................................................4
1.3.3.1 Plasmacellen.......................................................................................................................4
1.3.3.2 Macrofagen.........................................................................................................................5
1.3.3.3 Mastcellen..........................................................................................................................6
1.3.3.4 Witte bloedcellen................................................................................................................7
1.3.3.5 Pigmentcellen.....................................................................................................................7
1.4 ECM..................................................................................................................................................7
1.4.1 Vezels.........................................................................................................................................7
1.4.1.1 Collageen............................................................................................................................7
1.4.1.2 Elastische vezels..................................................................................................................9
1.4.1.3 reticuline vezels..................................................................................................................9
1.4.2 Grondstof...................................................................................................................................9
1.4.2.1 Glycosaminoglycanen.......................................................................................................10
1.4.2.2 Proteoglycanen.................................................................................................................10
1.4.2.3 Glycoproteïnen.................................................................................................................10
1.4.2.4 Water................................................................................................................................11
1.5 Types eigenlijk bindweefsel............................................................................................................11
1.5.1 Vezelrijk bindweefsel...............................................................................................................11
1.5.1.1 Losmazig bindweefsel.......................................................................................................11
1.5.1.2 Dens bindweefsel..............................................................................................................11
1.5.2 Embryonaal bindweefsel..........................................................................................................12

1

, 1.5.3 Reticulair bindweefsel..............................................................................................................12
1.5.4 Vet bindweefsel.......................................................................................................................12



1.1 Inleiding bind – steunweefsels
- Mesoderm  mesenchymcellen = Multi potente stamcellen  kunnen nog verschillende
weefsels worden
o Mesenchymaal of embryonaal bindweefsel
- Grootste deel van weefsel ingenomen door ECM
- Eigenschappen ECM bepalen eigenschappen weefsel
- Onderverdeling
o Eigenlijk bindweefsel
o Bloed
o Kraakbeen
o Bot, dentine, cement
- Verschil met epitheelcellen
o Epitheelcellen liggen dichter bij elkaar
o Epitheelcellen hebben veel minder ECM
- Functies
o Mechanische steun dankzij aanwezigheid van collageen
o Transport van voedingstoffen
 Metabolieten zijn betrokken bij metabole processen in het lichaam
 ECM van bloed= bloedplasma  zeer vloeibaar dus ideaal voor transport
o Stapelen van reservestoffen: vetweefsel
o Verdediging
 Bv witte bloedcellen
o Herstel: eigenlijk bindweefsel
o Temperatuurregulatie: vetweefsel

1.2 Inleiding eigenlijk bindweefsel
- Kenmerken
o Verbindingsweefsel tussen weefsels en organen
o Plaats langswaar bloedvaten en zenuwelementen organen en weefsels bereiken
o Grote variatie aan cellen + grote hoeveelheid ECM
o Zenuwbundels, klieren en bloedvaten  eigenlijk bindweefsel
- Cellen
o Aanmaak en onderhuid van bindweefsel
 Mesenchymcellen= stamcellen  deze zullen differentiëren en nieuwe
bindweefsel cellen vormen bij beschadiging
 Eigenlijke bindweefsel cellen
 Fibroblast= jonge cel
 Fibrocyt= rijpe cel
o Isolatie + reserve
 Vetcellen
 Kunnen vetlagen vormen of verspreidt liggen
 Opslag energie

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