Cartilage CT

Question 1

What is Cartilage?

Answer 1

a CT that is firm, but flexible

• 80% water
• grat shock absorber and resists compression

Question 2

What is Cartilage covered with?

Answer 2

the perichondrium

• this helps resister outer expansion when cartilage is compressed
• contains mesenchymal stem cells

Question 3

Is cartilage innervated or vascular?

Answer 3

no

Question 4

How do nutrients and gases get to cartilage?

Answer 4

by diffusion

Question 5

What cells are found in cartilage?

Answer 5

Chondroblasts and Chondrcytes

Question 6

What are chondroblasts?

Answer 6

they form the cartilage matrix and are located next to the perichondrium and within growth plates

Question 7

What are chondrocytes?

Answer 7

mature cells that are embedded within the extracellular matrix in a space referred to as a cartilage lacuna

Question 8

What types of fibers are found in all cartilage types?

Answer 8

type 2 collagen

Question 9

What are the different types of cartilage?

Answer 9

Hyaline- ends of bones, good shock absorbers
Elastic- ear, epiglottis, and eustachian tube
Fibrocartilage- intervertebral disks, super tough, has type 1 collagen as well as 2

Question 10

How does growth of cartilage happen?

Answer 10

in one of 2 ways

• Appositional growth: chondroblasts next to perichondrium deposit one layer of cartilage on top of another.. piling on
• Interstitial growth: expanding from within. Chondrocytes within cartilage divide.

Question 11

What are some cartilage-related disorders?

Answer 11

Hip and knee osteoarthritis: break down of hyaline cartilage from wear and tear over time or due to physical damage
-torn meniscus is a common injury in sports