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AP 6-2 (types of cells (osteoprogenitor, osteoblast, osteocytes,…
AP 6-2
types of cells
osteoprogenitor
osteoblast
osteocytes
osteoclasts
osteoporosis
@ 50 yrs breakdown of bones begin
bones are lighter and weaker
men lose < 25%
women lose 35%
joints
pivot
ball and socket
hinge
gliding
cartilage
dense connective tissue
flexible parts of nose and ear
fontanels at birth
osteoprogenitor
non specialized stem cells
can turn into other cells as needed
bone development
begins during embryo phase
starts at 8 wks
epiphyseal plate
after birth epiphysis on long bones grow
plate between thin band of cartilage is formed
ossification
formation of bones in body