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Flashcards in Bone Nishimoto Deck (16):
1

Two major types of bone are?

Trabecular (spongy) and cortical (Solid)

2

Trabecular bone is located where?

The end of long bones

3

Cortical is located where

Shaft

4

Compressive stress =

body wt pushing bone down

5

Tensile stresses= muscle pulling bone apart

ok

6

Cortcal bone is organized into

Haversian systems

7

Organic matrix of bone consists primarily of

Collagen

8

mineral component of bone is mostly

hydroxyappetite

9

Water is approximately what percentage of bone mass

25%

10

bone density =

weight of mineral per volume of bone

11

osteocytes have long cellular processes

ok

12

PTH binds to what bone cell

Bone lining cell

13

Osteoblasts come from what?

Bone marrow precursor cells...these precursor cells are capable of turning into osteoblasts or fat cells

14

What is the job ofosteoblasts

Make the proteins that will form the organic matrix of bone...osteoid

15

What the hell are osteoclasts

Multinucleate giant cells formed by differentiation and fusion of monocytes

16

Osteaclasts do what?

resorb bone matrix