MICROANATOMY

MUSCLE NERVE CARTILAGE BONE

CARTILAGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How thick are collagen fibres?
A
Very thin
B
Very thick
C
It varies depending on the type of cartilage
D
This is not the answer
Explanation: 

Detailed explanation-1: -Hyaline Cartilage has a smooth surface and is the most common of the three types of cartilage. It has a matrix that contains closely packed collagen fibers, making it tough but slightly flexible.

Detailed explanation-2: -The collagen fibers are shaped like tapes or cords about 1 to 20 microns in diameter. Each fiber is a bundle of fibrils running roughly parallel to each other.

Detailed explanation-3: -The main and most abundant collagens are type II, IX and XI collagens. The minor and less abundant collagens are type III, IV, V, VI, X, XII, XIV, XVI, XXII, and XXVII collagens. All these collagens have been found to play a key role in healthy cartilage, regardless of whether they are more or less abundant.

Detailed explanation-4: -Collagen is the most abundant structural macromolecule in ECM, and it makes up about 60% of the dry weight of cartilage.

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