Lecture 4

Question 1

3 types of cartilage

Answer 1

Hyaline Cartilage
Fibrocartilage
Elastic Cartilage

Question 2

Cartilage with the highest water content

Answer 2

Hyaline (60-80%)

Question 3

Most pliable cartilage

Answer 3

Elastic

Question 4

Cartilage in acetabulum, menisci, intervertebral discs, and tendinous insertions

Answer 4

Fibrocartilage

Question 5

Cartilage found at epipheaseak growth plates of immature bones

Answer 5

Hyaline

Question 6

Most rigid and abundant cartilage

Answer 6

Hyaline Cartilage

Question 7

Cartilage has no nerve or vascular supply of its own… gets water and nutrients from surrounding structures

Answer 7

True

Question 8

What are the two growth processes of cartilage

Answer 8

Interstitial Growth

Appositional Growth

Question 9

Interstitial Growth

Answer 9

Miotic division within the cartilage to increase tissue mass (growth from the inside)

Question 10

Appositional Growth

Answer 10

New layers laid down on the outside of the cartilage (growth on the outside)

Question 11

With age, cartilage becomes

Answer 11

Hard, brittle, dehydrated, poorly nourished, thinner

Question 12

2 processes of bone formation

Answer 12

Intramembranous Ossification

Endichondral Ossification

Question 13

Intramembranous Ossification takes place in what tissue and affects what bones?

Answer 13

Mesenchyne tissue and affects skull, carpals, tarsals and clavicle

Question 14

Endochondral Ossification. What is it and where does it happen

Answer 14

It is cartilage replaced by bone and it takes place in long bones

Question 15

Most common type of salter Harris fx (type and where it is)

Answer 15

Type 2

Through growth plate and metaphysis

Question 16

Slater Harris fractures

Answer 16

1: through growth plate
2: growth plate and metaphysis
3: growth plate and epiphysis
4: through all 3
5: compression of growth plate

Question 17

Rickets results from a ______ deficiency

Scurvy results from a ______ deficiency

Answer 17

Rickets - vitamin D deficiency
Scurvy - vitamin C deficiency

Cody Hall, RD, Sc

Question 18

Pavlik Harness is used for someone with ______

Answer 18

DDH

Question 19

At birth, the diaphysis is

Answer 19

Ossified

Question 20

At birth, the bony parts of the vertebrae are

Answer 20

Connected by cartilage

Question 21

At birth, the skull contains _______ between the bones

Answer 21

Fontanells

Question 22

By age 10, the bone mass is at

By age 20…

Answer 22

50%

… additional 40% by age 20

Question 23

3 common injuries to specifically look out for in children:

Answer 23

Greenstick Fxs
Apophyseal Avulsions (tendon from muscle)
Epiphyseal Injuries

Question 24

Knee Alignment from infant to young adult to old

Answer 24

Varum to Valgum to straight to varum

Question 25

Epiphyseal Plate Closure by:

Answer 25

25 years old