Q. Which of these constitute largest proportion of articular cartilage?
a. Cells
b. Collagen
c. Water
d. Proteoglycan
e. Hyaluronic acid
Answer -
c
Water constitutes the largest part of hyaline articular cartilage.
Water - 70-80% followed by Collagen 10-20%.
Rest are Proteoglycan and cells(chondrocyte as only cells).
Most if collagen is type 2
Cartilage acts as biphasic material with water and solid phase.
Type 2 collagen has least reparative quality.
It is like hyoerhydrated sponge with viscoelastic properties.
In normal activities (like walking) it behaves more as viscous and while in running it behaves in elastic manner to protect the joints.
a. Cells
b. Collagen
c. Water
d. Proteoglycan
e. Hyaluronic acid
Answer -
c
Water constitutes the largest part of hyaline articular cartilage.
Water - 70-80% followed by Collagen 10-20%.
Rest are Proteoglycan and cells(chondrocyte as only cells).
Most if collagen is type 2
Cartilage acts as biphasic material with water and solid phase.
Type 2 collagen has least reparative quality.
It is like hyoerhydrated sponge with viscoelastic properties.
In normal activities (like walking) it behaves more as viscous and while in running it behaves in elastic manner to protect the joints.
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