Bone Tissue Test Review

what are the basic regions of a long bone

epiphysis, metaphysis, diaphysis

epiphyseal plate

the growth plate, thin line of cartilage

What covers the end of bones

articular cartilage

What does articular cartilage on bones do

smoothes movement and cushions shock

where does hematopoiesis happen

in bones in medullary cavity

periosteum 

outside layer of the bone where muscles attach and bone repair

compact bone

located beneath periosteum

spongy bone

located at the ends of bones and under compact bone layer

organic composition of bone

gives tensile strength and flexibility and made of collagen etc

What does the lack of collagen in bone tissue do

causes brittle bone disease

inorganic composition of bone

provides bone hardness, made of salts called hyroxyapatites 

what does the lack of hyroxyapatites cause

this can cause for rickets

osteoblasts

form new bone, found in growing parts

osteocytes

mature bone cells within the lacunae, connect all bone cells and allows for waste removal

Osteoclasts

bone resorption, breakdown

spongy bone

made of lattice of trabeculae

what is between trabeculae of spongy bone

marrow and blood vessels

compact bone

made up of cylinders called osteons which are in circles called lamellae