Cartilage

Question 1

Function of Hyaline cartilage

Answer 1

Supports and reinforces

Resist compressive stress

Question 2

Structures of hyaline

Answer 2

Condroblast produce the matrix
Chondrocyte are matured condroblast
Chrondrocyte lie in lacunae

Question 3

Location of hyaline

Answer 3

Larynx,trachea, cartilage of nose,ribs and intercostal muscles

Question 4

Location of elastic cartilage

Answer 4

Epiglottis and pinna

Question 5

Structure of elastic

Answer 5

Similar to hyaline(except fibers)

Elastic have more elastic fibers

Question 6

Function of elastic fibers

Answer 6

Maintains the shape of a structure

Allows great flexibility

Question 7

Structure of fibrocartilage

Answer 7

Thick collagen fibers
Firm matrix but similar to hyaline cartilage
Collagen fibres are parallel
Condrocyte between collagen fibres

Question 8

Function of fibrocartilage?

Answer 8

Tensile strength

Absorb compressive shock

Question 9

Location of fibrocartilage

Answer 9

Intervertebral discs

Knee joint

Question 10

Function of cartilage

Answer 10

Tiisues bear Mechanical stresses 
Shock absorbing without permanent distortion 
Supports soft tissues 
Smooth surface allows Sliding against it
Growth and development of bone

Question 11

What does Ground substance contains?

Answer 11

It contains of proteoglycans

Question 12

What does proteoglycans consists of

Answer 12

Sulphated and Non-sulphated GAGs

Question 13

Where does Hyaluronic acid arise from?

Answer 13

Non-sulphated GAGs

Question 14

What does sulphated GAGs consist of

Answer 14

Chondroitin and keratan Sulphate

Question 15

What nourishes chrondrocytes and houses blood vessels?

Answer 15

Perichondrium

Question 16

What plays a role in growth and repair of Cartilage?

Answer 16

Perichondrium

Question 17

Which type of collagen does perichondrium have?

Answer 17

Type 1 collagen

Question 18

What are rounded cartilage precursor cells formed from differentiation of mesenchymal Cells?

Answer 18

Chondroblast

Question 19

Which type of collage does hyaline cartilage Have?

Answer 19

Type II

Question 20

Which cartilage serves as as temporary selection in embryo?

Answer 20

Hyaline cartilage

Question 21

Articular cartilage is differentiated into which four zones?

Answer 21

Superfacial zone
Middle/transitional zone
Deep/transitional zone
Calcified zone

Question 22

Superfacial zone?

Answer 22

First zone
Smooth region
Provides sliding surface

Question 23

Middle zone?

Answer 23

2nd zone
Increases tensile strength
Compression resistance

Question 24

Deep zone?

Answer 24

3rd zone
It has highest proteoglycans surface
Provides greatest resistance

Question 25

Calcified zone?

Answer 25

Last zone

Lowest level of cartilage

Question 26

Type of cartilage fibrocartilage has?

Answer 26

Type 1 and oriented parallels to stress plane

Question 27

Where can we find isogenic group?

Answer 27

In hyaline and fibrocartilage only

Question 28

Two types of cartilage growth?

Answer 28

Interstitial growth-middle

Appositional -at the edge

Question 29

Describe interstitial growth

Answer 29

1. mitotic division of pre-existing Chondrocyte
2. Synthesis of matrix
3. Expands cartilage matrix within
4. Occurs in epiphyseal plates

Question 30

Describe Appositional growth?

Answer 30

Differentiation of pericondrial cells into condroblasts
Synthesis of matrix
Increase in girth