Ossification 1

Question 1

Bone is the embryological derivative of which specific connective tissues?

Answer 1

Mesenchyme and/or cartilage

Question 2

What is the name given to the pattern of ossification in mesenchyme?

Answer 2

Intramembranous ossification

Question 3

What is the timing for the appearance of intramembranous ossification?

Answer 3

From the second to third month in utero

Question 4

What part of the axial skeleton is primarily formed by intramembranous ossification?

Answer 4

The skull

Question 5

What is the name given to the pattern of ossification in cartilage?

Answer 5

Endochondral ossification

Question 6

What is the timing for the appearance of ossification in cartilage?

Answer 6

From the second to fifth month in utero

Question 7

Which skull bones are ossified by both endochondral and intramembranous ossification?

Answer 7

The mandible, sphenoid, temporal & occipital bones

Question 8

Which bone of the appendicular skeleton is formed by both endochondral and intramembranous ossification?

Answer 8

The clavicle

Question 9

What are the names given to the centers of ossification based on time of appearance?

Answer 9

Primary centers of ossification appear before birth

Secondary centers of ossification appear after birth