bone cells

Question 1

osteochondroal progenitor cells

Answer 1

stem cells that differentiate into chondroblasts/osteoblasts

Question 2

location of osteochondral progenitor cells

Answer 2

inner layer of perichondrium
perisotium
endosteum

Question 3

Chondroblasts

Answer 3

secrete cartilage matrix
derived from osteochondroal progenitor cells

Question 4

chondrocytes

Answer 4

Differentiated Chondroblasts once done secreted matrix
housed in lacunae

Question 5

osteoBLASTS

Answer 5

bone building cells by ossification
derived from osteochondral progenitor cells

Question 6

osteoblasts secrete

Answer 6

collagen and protoglycans,
matrix vesicles which form hydroproxipate

Question 7

ossification

Answer 7

formation of new bone
occurs through appostional growth
osteoblasts connect to other osteoblasts through gap junctions

Question 7

ossification

Answer 7

formation of new bone
occurs through appostional growth
osteoblasts connect to other osteoblasts through gap junctions

Question 8

Osteocytes

Answer 8

mature bone cells
very long lived
derived from osteoblasts

Question 9

osteoCYTES receive nutrition by

Answer 9

diffusion from small amount of fluid in lacunae that travels through canliculi and gap junctions

Question 10

osteoCLASTS

Answer 10

reabsorption of bones
massive multinucleated cells

Question 11

osteoclasts derived from

Answer 11

red bone marrow that also makes monocytes

Question 11

osteoclasts derived from

Answer 11

red bone marrow that also makes monocytes

Question 12

osteoclasts bone reabsorption process

Answer 12

1. plasma membrane becomes ruffled border
   2.ATP powered H+ pumps and protien enzymes fuse with border
2. secretion of H+ makes environment acidic and breakdown bone matrix
3. proteins digest organic materials
4. products carried across cytoplasm of osteoclasts through transcytosis and deposited on other sdie