IV - Bone Flashcards Preview

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Flashcards in IV - Bone Deck (47)
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1

Bone Stores: Calcium

99%

2

Bone Stores: Phosphorus

85%

3

Bone Stores: Magnesium

65%

4

Unmineralized bone

osteoid

5

Most abundant bone cell

osteocyte

6

Bone resorption cell

osteoclast

7

Bone cell with PTH, vitamin D and estrogen receptors

osteoblast

8

Multinucleated bone cells derived from the pluripotent hematopoietic stem cells

osteoclast

9

Mononuclear cells that synthesize most of the protein in bone

osteoblast

10

Deposits new bone matrix and mineralizes it

osteoblast

11

Trabecular or Spongy Bone

cancellous

12

Compact Bone

cortical

13

Bone: less dense, softer, weaker, less stiff

cancellous

14

Bone: facilitates main functions

cortical

15

Bone: highly vascular, contains marrow

cancellous

16

Bone: 80% of weight of the skeleton

cortical

17

Bone: site of hematopoiesis

cancellous

18

Bone: affected by osteoporosis

cancellous

19

Resorbs bone

osteoclast

20

Bone: pluripotent mesenchymal stem cells

osteoprogenitor cells

21

Synthesize, transport and arrange bone matrix

osteoblast

22

Bone: derived from hematopoietic progenitor cells

osteoclast

23

Bone: ruffled borders along its membrane to increase cell surface area

osteoclast

24

Bone: detect mechanical forces and translate them into biological activities

osteocyte

25

Functional unit of compact bone

osteon/Haversian system

26

Carries blood vessels and nerves through the osteon

Haversian canal

27

"Little layer" of bone matrix between concentric rings of osteocytes

lamellae

28

Houses osteocytes

lacunae

29

Houses osteoclasts

Howship's lacunae

30

Protoplasmic extensions from osteocytes by which maintenance of bone is performed

canaliculi