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Samenvatting practicum 4 kraakbeen en bot + illustraties
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In deze samenvatting gaat het over practicum 4 van histologie De naam van het preparaat + microscopische illustraties van de weefsels staan erin
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Practicum 4 : Kraakbeen en botL2/13 : trachea en oesofagus – kleuring: trichroom lichtgroen
Algemene opbouw: practicum 2
Hyalien kraakbeen
- Chondrocyten:
➢ in groepjes van 2 of 4 cellen bij elkaar = isogene groepen
➢ omgeven door stevige matrix (onveranderd bij preparatie)
➢ krimpen waardoor duidelijk wordt dat ze in holle ruimte liggen = lacune
in lacune: enkel kernen zichtbaar
lacunes niet altijd samengebundeld tot isogene groepen, kunnen ook individueel voorkomen, meestal dicht tegen perichrondrium
- Tussen lacunes en isogene groepen ligt kraakbeen matrix
Territoriale matrix
➢ vormt donkere rand rond lacunes → hoge concentratie
aan GAG – lage concentratie aan collagene vezels
Interterritoriale matrix
➢ iets lichter gekleurd → lage concentratie GAG – hoge
concentratie collageen type 2
- Omgeven door perichondrium
➢ dicht onregelmatig collageen bindweefsel
➢ vol met kernen van fibroblasten
- Chrondroblasten: aan de rand van kraakbeenstukken, tegen
perichondrium
, Practicum 4 : Kraakbeen en bot
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