dissolve bone, put calcium into the blood
build bone, remove calcium and phosphates from the blood
mature cells find within compact bone, strengthens bone
end of bone (red marrow)
between diaphysis and epiphysis (growth plate)
head, neck, torso
functions of bones
support, movement, protection, mineral storage, blood cell synthesis (hematopoiesis)
1. cartilage cells grow
2. periosteum forms (cartilage decomposes)
3. blood vessels invade and osteoblasts build spongy, then compact bone
4. osteoblasts become osteocytes when bony matrix surrounds them
5. epiphyseal plate remains btw. diaphysis and epiphysis, and epiphysis begins to ossify
growth hormone deficiency
abnormally large growth plate
thinning of bones
softening of bone tissue
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