superior osteology Flashcards
osteoblasts
metabolically active cells found on the surface of bones. secrete fibers and ground substance
osteocytes
old osteoblasts
osteoclasts
multinucleated cells that reabsorb bone
osteonal lamellae
have central canals and form circles.
interstitial lamellae
made of reminents of osteonal lamellae
external circumferential lamellae
most outer part of the bone.This surrounded by the periostium
internal circumferential lamellae
lines the medullary cavity
3 physical funtctions of bone
structure, protection, locamotion
3 metabolic functions of bone
hemopoiesis, fat deposit, calcium and phosphorous storage
what makes the pectoral girdle
sternum, 2 scapulae,2 clavicles
what makes the pelvic girdle
bony sacrum, 2 os coxae
how many long bones in the body
88
how many short bones
30
how many sesamoid bones
10
red bone marrow
in younger individuals ( this is hemopoietic)