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Arrow_left - Skeletal System
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zygomatic bone
cheek bone
vertebral foramen
canal through which spinal cord passes
types of synovial joints
plane, hinge, pivot, ball-and-socket (condyloid and saddle)
true ribs
first 7 pairs of ribs; attach directly to sternum
true pelvis
surrounded by bone and lies inferior to flaring parts of the ilia; passage for infant at birth in women
tibia
shinbone
third step of bone fracture repair
bony callus is formed
things stored by the bones
fat, calcium, phosphorous
tendon sheath
elongated bursa that wraps completely around a tendon subjected to friction
tarsus
posterior half of foot
talus
ankle
synovial joints
bone ends separated by joint cavity w/synovial fluid; i.e knee
synarthroses
immovable joint
suture
immovable joint in the cranium
structural classification of joints
fibrous; cartilaginous; synovial
spongy bone
bone composed of small, needlelike pieces; lots of space
spiral
break that occurs from excessive twisting
shoulder girdle
clavicle and scapula
sella turcica
depression in sphenoid bone that holds pituitary gland
second step of bone fracture repair
break is splinted by fibrocartilage
sagittal suture
connects two parietal bones together
reduction
realignment of broken bone ends
pubis
most anterior part of hip bone
plane joint
short slipping or gliding movements; i.e. carpals
pivot joint
rotating bone turns around an axis; i.e. connection between radius/ulna and humerus
periosteum
connective tissue membrane surrounding diaphysis
pelvic girdle
two coxal bones (aka hip bones)
patellar surface
smooth area where patella rests to form knee cap
ostoblasts
bone-forming cells
osteocytes
mature bone cells
osteoclasts
bone-destroying cells
ossification
process of bone formation
open fracture
bone fracture that breaks through the skin
metatarsals
sole of the foot
metacarpals
bones of the palm
mandible
only bone with a movable joint in the face
lacrimal bone
allows tears to travel down
ischium
most inferior part of hip bone; the "sit down" bone
invertebral discs
pads of flexible fibrocartilage that cushion between vertebrae
interosseous membrane
flexible membrane connecting radius and ulna & tibia and fibula
impacted
broken bone ends are forced into each other
ilia
large, flaring bone portion of hip bones
hyoid bone
only bone that does not directly come in contact with other bones
hinge joint
angular movement allowed in one plane; i.e. elbow
greenstick
incomplete break
glenoid cavity
socket in scapular that receives head of humerus
functions of the bone
support, protection, movement, storage, blood cell formation
functions of joints
hold bones together; give mobility
functional classification of joints
synarthroses; amphiarthroses; diarthroses
fourth step of bone fracture repair
bone remodeling occurs
foramen magnum
large opening in occipital bone that allows spinal cord to attach to brain
foot arch
ligaments and tendons hold bones in foot together providing springiness
fontanels
fibrous membrane connecting cranial bones in fetuses
floating ribs
last two pairs of ribs; do not attach to sternum
first step of bone fracture repair
hematoma is formed
fibrous joints
united by fibrous tissue; i.e. sutures
femur
thigh bone
features of synovial joints
articular cartilage; fibrous articular capsule; joint cavity; reinforcing ligaments
false ribs
last 5 pairs of ribs; attach indirectly to sternum
false pelvis
superior to true pelvis