Quiz 3 - Compact & Spongy bone Flashcards Preview

Anatomy > Quiz 3 - Compact & Spongy bone > Flashcards

Flashcards in Quiz 3 - Compact & Spongy bone Deck (18):
1

compact bone

dense, solid bone making up the outer layers of most bones

2

structure(s) of compact bone

osteon
lamellae
central canal
perforating canals
lacunae
canaliculi

3

osteon

basic structural unit of compact bone

4

lamellae

layers of bone matrix parallel to long axis of bone, contain lacunae in between layers

5

central canal

central channel containing blood vessels and nerves

6

perforating canals

channels perpendicular to the central canal, connecting blood and nerve supply to central canal

7

lacunae

small cavities that contain osteocytes

8

canaliculi

small canals that connect lacunae to each other and central canal

9

spongy bone

forms open framework, much lighter than compact

10

sturcture(s) of spongy bone

trabeculae

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trabeculae

parallel struts or thick branching plates

12

structure of a long bone

epiphysis
diaphysis
metaphysis

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epiphysis

ends of a bone

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diaphysis

shaft

15

metaphysis

connects epiphysis and diaphysis

16

membranes of bones

periosteum and endosteum

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periosteum

covers outer surfaces of bones, consists of outer fibrous nd inner cellular layers

18

endosteum

incomplete cellular layer that covers internal surfaces of bone