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Flashcards in Osteology Day 1 Deck (21):
0

What is the primary constituent of the ground substance?

Glycosaminoglycans

1

What is the principle type of protein fiber in bone?

Collagen type I

2

What is the frequent described deposit in bone?

Hydoxyapatite

3

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

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

4

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

Intramembranous ossification

5

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

Endochondral ossification

6

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

From the second to fifth month in utero

7

What part of the skull is derived from endochondral ossification?

Chondrocranium

8

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

The clavicle

9

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

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

10

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) and idiosyncratic variation (individual variation)

12

What are the six more commonly used classifications of normal bone?

Long bones, short bones, flat bones, irregular bones, paranasal sinus or pneumatic bones and sesamoid bones

13

What is the name given to bone formed in a non-bone location?

heterotopic bone

14

What is the name given to bone formed from existing bone?

accessory bone

15

What are examples of short bones?

most of the bones of the carpus and tarsus

16

What is characteristics of pneumatic bone?

air spaces with bone

17

what are examples of pneumatic bone?

frontal, ethmoid maxilla, sphenoid & temporal

18

what is the characteristic of sesamoid bone?

the bone develops within a tendon

19

what are consistent examples of sesamoid bones?

patella and pisiform

20

What are the four basic surface feature categories?

elevations, depressions, tunnels or passageways & facets

21

What are the types of osseous elevations?

linear, rounded and sharp