Skeletal test 10/29/21
Lamellae
Layers of bone matrix
short bone
Small with irregular shapes. Found in wrist and ankle.
compression fracture
bone is crushed, common n skull and vertebral column.
open fracture
bone penetrates skin
plane or gliding joints
bones of hand and foot
osteoclasts
break down bone
closed fracture
break that does not penetrate the skin
osteoblasts
builds up bone
canaliculus
canals so bone cells can touch each other
comminuted fracture
complete fracture, it is a break that has many fragments
oblique fracture
complete fracture, occurs when the bone is broken into 2 fragments and the break is at an angle
transverse fracture
complete fracture, occurs when the bone is broken into 2 fragments and the break is straight across
spiral fracture
complete fracture, occurs when the bone is broken into two fragments and the break is at an angle that is twisted
irregular bone
complex shapes. (pelvis)
hinge joint
elbow and knee
sphenoid sinus
found between the nose and the eyes below the ethmoid sinus
ethmoid sinus
found in the ethmoid bone in the upper part of the nose between the eyes
flat bone
have a flat shape, not rounded. an example would be the ribs
Haversian canal
holds blood vessels and nerves
hairline fracture
incomplete fraction, a crack that does not break all the way through
greenstick fracture
incomplete fracture where one side of the bone breaks and the other side bends; common in children
maxillary sinus
located below the cheeks above the teeth
frontal sinus
located in a hollow space in bones around the forhead
long bone
longer than they are wide. Example would be the tibula
slightly movable joints
mostly cartilagenous
immovable joint
mostly fiberous
ball and socket joint
shoulder and hip
lacunae
small cavities in bone that contain osteocytes
freely movable
synovial
gives the body shape, protects internal organs, and provides body movement
what are the functions of the skeletal system
compression fracture
what fraction is common in old people
Break is splinted by a fibrocartilage callus
what is the 2nd step in bone remodeling
Fibrocartilage callus is replaced by a bony callus
what is the 3rd step in bone remodeling
Bony callus is remodeled to form a permanent patch
what is the 4th step in bone remodeling
Hematoma ( blood- filled swelling) is formed.
what is the first step in bone remodeling
ligaments
what's an example of a freely movable joint
Pubic sysmphysis
what's an example of a slightly movable joint
sutures
what's an example of an immovable joint
pivot joint
wrist and where arm and hand meeet