Cells, Matrix, Ossification, Bone Density, Bone Variation Flashcards Preview

Spinal Anatomy > Cells, Matrix, Ossification, Bone Density, Bone Variation > Flashcards

Flashcards in Cells, Matrix, Ossification, Bone Density, Bone Variation Deck (11):
1

What is the primary constituent of the ground substance?

Glycosaminoglycans

2

What is the principal type of protein fiber in bone?

Collagen type I

3

What is the most frequently described deposit in bone?

Hydroxyapatite

4

What are the three responses of bone which allow it to be described as "living"?

It has the ability to heal, to remodel under stressors, and to age

5

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

Intramembranous ossification

6

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

Endochondral ossification

7

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

From the second to fifth month in utero

8

What part of the skull is derived form endochondral ossification?

Chondrocranium

9

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

Clavicle

10

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

-Primary centers of ossification appear before birth
-Secondary centers of ossification appear after birth

11

What are the primary sources of variation observed in bone?

-Gender variation (sexual dimorphism)
-Ontogenetic variation (growth or age variation)
-Geographic or population-based variation (ethnic variation)
-Idiosyncratic variation (individual variation)

Decks in Spinal Anatomy Class (33):