Le Cartilage Flashcards

1
Q

Origine chondroblaste

A

Mésench

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2
Q

Particularité matrice

A

Non minéralisée

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3
Q

Compo MEC

A

Collagène type 2 et substance fondamentale (eau + GAG sulfaté ou non)

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4
Q

Croissance interstitielle

A

A partir de chondrocytes à l’int du cartilage formant des groupes isogeniques qui synth la MEC
Pdt ossification enchondrale

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5
Q

Croissance appositionnelle

A

A partir de cellules indifférenciées de la couche interne du perichondre
En cas de lésion

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6
Q

Cartilage hyalin

A

Le plus fréquent
MEC transparente
Nez, larynx, trachée, bronches, côtes, articulations
Chondrocytes, collagène de type 2, substance fondamentale

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7
Q

Cartilage élastique

A

Revient à sa forme initiale après déformation
Fibres d’élastique et collagène
Épiglotte, pavillon, trompe d’Eustache

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8
Q

Fibrocartilage

A

Collagène type 1 ++
Chondrocytes, qq fibroblastes
Disques interv, ménisques, insertion tendons, ligaments, symphyse pubienne

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9
Q

Arthrose

A

Modification de la compo en proteoglycanes et en collagène, augmentation teneur en eau

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