gel de MEC Flashcards

1
Q

structure

A

chaînes de glycosaminoglycanes (GAG)
- chaînes disaccharides rép
-1 est glucide aminé
-2 est acide uronique

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

rôle

A

substance fondamentale
remplit espace

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

chargé (-)

A

attire ions Na+ et H2O = turgescence

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

liés

A

covalente à protéine = protéoglycanes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

arthrose

A

cartilage articulaire s’effrite
chondrocytes détruisent MEC
acide hyaluronique (GAG) - abondant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

comment protège articulations

A

mailles avec GAG
absorbe ++ H2O = turgescence = résistance à compression

How well did you know this?
1
Not at all
2
3
4
5
Perfectly