compact and cancellous bone Flashcards
how many layers of bones are there
2 layers- compact outer layer and cancellous inner layer
what are the components of cancellous bone
it has trabeculae in it which are web like connections and within the trabeculae there is bone marrow
where does stem cell production happen
in cancellous bone
why is cancellous bone very well vascularized
veins and arteries run through the bone nourishing it
describe compact bone simply
its more densely connected so it has more structural support
how is compact bone arranged
it is arranged longitudinally
how is compact bone vascularized
there are osteons and veins run through it the osteons
describe osteons
also known as haversian systems they are circle-like
how are osteons made
the capillary and central canal are present and then lamellar layers is formed around it
what cells assist in the process of creating osteons
osteoblasts -building and forming the lamellar bone
osteocytes - in charge of maintenance and are enclosed in the lacunae
how many lamellar layers does an osteon have when completed
10 to 15 layers
what are the two types of blood supplies in an osteon
haversian canals and volkmans canals
what is the difference between haversian canals and volkmans canals
Volkman canals run horizontally which is perpendicular to the haversian canal which runs longitudinally
