Bones Flashcards
(31 cards)
Support, protect, movement, blood cell formation, mineral storage
Function of the skeletal system
Appendicular
Extremities
Axial
Thoracic cavity
Expand on the end
Long and narrow
Long bones
Cube-like
Embedded in tendons
Short bones
Broad surfaces
Flat bones
Osteocytes
Mature bones
Chamber by osteocytes
Lacunae
Canaliculi
Tiny passageways processes of osteocytes nutrients and wastes
Gives bone resilience
Collagen
Make bone hard
Inorganic salts
Compact bone
Cylindrical units called osteons
Weight bearing
Resists compression
Spongy bones
Reduce weight
Flexible
Branching plates trabeculae
Loss of bone mineralization
Osteoporosis
Flat skull, clavicles, sternum
Intramembranous ossification
Endochondral ossification
Long bones
Hyaline Cartilage
Break down
Osteoclast
Osteoblast
Replacing cartilage
As long as cartilage of epiphyseal plate remain active
Bone growth
Deficiency rickets osteomalacia
Vitamin D
Deficiency retards bone development
Vitamin A
Vitamin C
Deficiency slender fragile bones
Stimulate cartilage
Insufficiency in child result in pituitary dwarfism
Excess in child causes giantism in adults causes acromegaly
Growth hormone
Axial skeleton
Skull, middle ear bone, hyoid bone, vertebral column, thoracic cage