Cartilage Part 2

Question 1

What cartilage is in the growth plate and is responsible for interstitial growth in the bone?

Answer 1

Hyaline cartilage

Question 2

What zone of cartilage has resting chondrocytes
Type 2 collagen fibers that are randomly oriented?

Answer 2

Reserve

Question 3

Which zone of cartilage:
Chondrocytes divide, creating columns of flattened lacunae
Collagen fibers forming longitudinal septa in between lacunae

Answer 3

Cell proliferation

Question 4

What zone of cartilage has:
Low oxygen tension = chondrocytes stop dividing and start hypertrophying
Cartilage walls between lacunae are thinning

Answer 4

Cell hypertrophic/maturation

Question 5

Zone?
Mineral is deposited in collagen matrix between the chondrocytes columns
Cartilage is calcified

Answer 5

Calcification

Question 6

Zone?
Chondrocytes die and horizontal walls between the lacunae breakdown
Osteoblasts arrive and start to despot osteoid on the calcified cartilage, creating primary spongiosa

Answer 6

Bone deposition

Question 7

Zone?
Osteoblasts deposit concentric lamellae which will create secondary spongiosa
Chondroclasts remove the temporary mineralized cartilage

Answer 7

Metahphyesis

Question 8

What contributes chondrocytes to the growth plate for the growth in diameter?

Answer 8

Groove of Ranvier

Question 9

What provides mechanical support for the weak bone cartilage interface of the growth plate?

Answer 9

Ring of LaCroix

Question 10

What cartilage is similar to the structure of hyaline cartilage + branching elastic fibers?

Answer 10

Elastic

Question 11

In fibrocartilage, what is oriented in the direction of stress?

Answer 11

Collagen fibers

Question 12

What does fibrocartilage lack?

Answer 12

Perichondrium