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The Skeletal System
Skeletal system key terms
Question | Answer |
---|---|
appendicular skeleton | forms the extremities and is composed of the shoulder gridle,arm bones,pelvic gridle,and leg bones |
axial skeleton | forms the msin trunk of the body and is composed of the skull,spinal column,ribs and breastbone |
carpals | wrist |
clavicles | collarbones |
cranium | the speherical structure that surrounds and protects the brain |
diaphysis | the long shaft of bones |
endosteum | a membrane that lines the medulary canal and keeps the yellow marrow intact |
epiphysis | ends |
femur | thigh |
fibula | smaller bone of lower leg that attaches to the approximal end of the tibia |
fontanels | spaces or soft spots allow for the enlargement of the skull as brain growth occurs |
formina | openings in bones that allow neves andblood vessels to enter or leave the bone |
humerus | upper arm |
joints | areas where two or more bones join together |
ligaments | connective tissue bands |
medullary canal | a cavity in the diaphysis |
metacarpals | palm of hands |
metatarsals | bones in foot |
os coxae | hip bones or coxal |
patella | knee cap or knee bone |
periosteum | thick white membrane that covers the surface of a longn bone |
phalanges | fingers or toes |
red marrow | semi - fluid substance located in th small spaces of cancellous bone that is the source of blood cell production |
scapulas | shoulder bones |
sinus | opening or hollow space in bone |
sternum | breastbone |
sutures | immovible joints |
ribs | costae |
radius | lower arm |
ulna | large bone in lower arm |
vertabrae | segments in spinal column |
yellow marrow | fat cells |