Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
23 Cards in this Set
- Front
- Back
growth in length is called
|
interstitial
|
|
growth in width is called
|
appositional
|
|
bones made intramembraneously
|
skull and parts of the mandible and fully grown by about the age of two
|
|
which of the primary germ layers do bones come from
|
mesoderm
|
|
the membrane covering the cartilage model of bone is called
|
perichondrium
|
|
the artery that takes blood supply into the cartilage model of bone after the chondrocyte cells hypertrophy, explode, and alter the pH
|
nutrient artery
|
|
membrane that surrounds bone
|
periosteum
|
|
membrane that surrounds cartilage
|
perichondrium
|
|
two events that take place to initiate calcification or laying down of bone over the cartilage model
|
chondrocyte cells hypertrophy which alter the pH and the nutrient artery punctures it
|
|
growth plate is officially known as
|
epiphyseal plate
|
|
4 zones of the epiphyseal plate
|
zone of resting cartilage
zone of proliferating cartilage zone of hypertrophy zone of calcification |
|
where do chondrocyte cells anchor the epiphyseal plate to the epiphysis
|
zone of resting cartilage
|
|
only cell where cell division occurs
|
zone of proliferating cartilage
|
|
what occurs when the epiphyseal plate closes to soon
|
achondroplastic dwarfism
|
|
what hormone lowers blood calcium levels
|
calcitonin
|
|
what does calcitonin do
|
inhibits osteoclasts stimulates osteoblasts to build bone in an effort to lower blood calcium levels
|
|
what hormone increases blood calcium levels
|
parathyroid
|
|
what does parathyroid do
|
inhibits osteoblasts ans stimulates osteoclasts in an effort to raise blood calcium levels
|
|
what is the most mature form of vitamin D
|
calcitrol
|
|
basophils
|
produce histamine and create an inflammatory response
|
|
neutrophils
|
are phagocytic and eat stuff up and die
|
|
macrophages
|
phagocytic and the fibroblast cells follow them
|
|
describe the vitamin D pathway
|
starts in the skin
activated by UV rays parathyroid hormone does it thing in teh kidneys the final form of calcium is calcitrol |