Ch 5 Lec 3 - Skeletal System Flashcards
blank cartilage forms model of future bone
hyaline
in endochondral ossification, cells differentiate into blank
osteoblasts
in endochondral ossification, compact bone forms around the blank
diaphysis
spongy bone forms in the center of the model at the blank
primary ossification center
in endochondral ossification, the shaft is blank
remodeled
two types of cartilage that remain from endochondral ossification
articular, epiphyseal plate
the growth plate
epiphyseal plate
contact points of bone at joints has this cartilage
articular cartilage
bone growth, or elongation occurs at the blank
epiphyseal plate
growth in length continues until blank ossification center meet
2
the relative thickness of epiphyseal plate does not change until growth is almost blank
complete
cartilage depleted and epiphyseal plate narrows into the blank
epiphyseal
compact bone is deposited beneath periosteum and bone thickens in this growth
appositional growth
bone remodeling occurs blank life in appositional growth
throughout
bone remodeling is done by blank and blank
osteoclasts, osteoblasts
three types of bone
long, flat, sesamoid
longer length than width bones
long bones
bones that are thin and compact
flat bones
small bones in tendons that protect from wear and tear
sesamoid bones
three more types of bones
irregular, sutural, short
bone with complex shapes and difficult to categorize
irregular
bones that grow between sutures
sutural bone
cube shaped bones that have equal length and width
short bones
this is when osteoclasts carve out small tunnels and osteoblasts rebuild osteons
bone remodeling
blank percent of compact bone is remodeled each year
4
blank percent of spongy bone is remodeled per year
20
blank is fully remodeled every four months
distal femur
blank break does not penetrate skin
simple
blank break penetrates skin
compound
how the ankle fractures
pott’s fracture
transverse fracture breaks on a blank
slant
fracture that splinters
greenstick fracture
fractures where the bone gets pushed out of place
epiphyseal fracture
fracture of spine where vertebra crush each other
compression fracture
fractures are treated by blank and blank
reduction, immobilization
a blank forms within hours of the injury and it is a mass of blood
fracture hematoma
blank and eliminate dead cells and matrix
osteoclasts
this consists of a mass bridging the broken ends of the bone after about 3 weeks
fibrocartilaginous callus
a blank forms after about 3 to 4 months after breaking bone
bony callus
a well healed fracture is blank
undetectable
bone remodeling can take blank to blank depending on the severity of the fracture
weeks, months
three factors affecting growth repair and development of bone
vitamin d, sunlight, balance hormones, physical stress
abnormal reduction of bone mass
osteoporosis
osteoporosis causes blank in bones
holes
fibrodysplasia is when the fibrous tissue becomes blank
ossified
fibrodysplasia is a blank disorder and injury results in inappropriate blank formation
genetic, bone
