Craniofacial growth

Question 1

If a bone has a membrane around it what kind of growth will it do>

Answer 1

intramembranous ossification

Question 2

What are the 2 types of bone growth?

Answer 2

intramembranous ossification

endochondral ossification

Question 3

2 bones are connected by a suture. What type of ossification occurs?

Answer 3

intramembranous ossification

Question 4

What do we call the process of bone that has resorption and apposition?

Answer 4

remodelling

Question 5

What are the 4 types of remodelling?

Answer 5

1. periosteal
2. endosteal
3. sutural
4. ligamental

Question 6

Pressure on a bone will result in what type of change?

Answer 6

resorption

Question 7

Tension on a bone will result in what type of change?

Answer 7

apposition

Question 8

What is the skull derived from?

Answer 8

Neural crest cells and the mesoderm

Question 9

What are the 2 divisions of the skull?

Answer 9

Neurocranium (calvaria) and Facial Complex (viscerocranium/splanchnocranium)

Question 10

What is predominant type of ossification in the bones of the cranial vault?

Answer 10

intramembranous ossification

Question 11

4 sutures of cranial vault?

Answer 11

1. lambdoid
2. coronal
3. sagittal
4. frontal

Question 12

Whats wrong with SICHER’s theory (1940) “The sutures are growth centres”?

Answer 12

This is incorrect because sutures are not growth centres, but rather growth sites

Question 13

What promotes the growth of the cranial vault bones?

Answer 13

growth of the brain