Flashcards in Bone Nishimoto Deck (16)
Loading flashcards...
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
