bone

Question 1

osteoblast function

Answer 1

bone formation
synthesising bone matrix
priming bone matrix for mineralization

Question 2

structure of osteoblasts

Answer 2

plump cuboidal cells
abundant organelles for synthesis and secretion of proteins

Question 3

what are lining cells

Answer 3

osteoblasts which have completed phase of synthetic activity

Question 4

function of lining cells

Answer 4

activation of bone remodelling
likely co-operates with osteocytes in regulating calcium exchange from bone

Question 5

what are osteocytes

Answer 5

osteoblasts engulfed in bone matrix during apposition
eventually entombed in bone matrix

Question 6

what is the link between canaliculi and osteocytes

Answer 6

maintains junctions with other entombed cells and bone surface and vascular supply

Question 7

function of osteocytes

Answer 7

may function in regulation of calcium homeostasis
act as strain gauge to monitor and record extent of physical loading

Question 8

function of osteoclasts

Answer 8

resorption of bone

Question 9

osteoclast structure

Answer 9

large multinucleate cells
contains unique organelles