Bones, Skeletal tissues and Skull Flashcards
What are the functions of the skeletal system?
support
protection
anchorage
mineral and growth factors
bone cell formation
triglyceride storage
hormone production
what is it supporting?
body weight
what is it protecting?
internal organs
what does it anchor?
muscle attachments
what are mineral and growth factors need for?
good bone density
what are the three tissues in a bone?
periosteum
compact bone
sponge bone
what is an osteon?
carries arteries, nerves and veins
what is the circumferential lamellae for?
protects the lamellae
what is the endosteum lining bony canals?
the inner lining of bone canals
what does sponge bone contain?
red bone merrow
what does red bone merrow do?
makes blood cells
its hematoquoetic
what does the medullary cavity contain?
yellow bone merrow
what does yellow bone merrow do?
contains fats and stem cells
what bines are in the axial skeleton?
bones along the y-axis
skull
vertebra
sternum
breast bone
ribs
what is the auditory ossicles used for?
used for hearing