, 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
2
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