Ch 6, 1 skeletal cartilages Flashcards
hyaline cartilages
provides supports, flexibility, resilience, most abundance
end of long bones, coastal cartilages, trachea c rings
elastic cartilage
like hyaline, but more elastic
epiglottis, external ear
fibrocartilages
collagen fibres-have great tensile strength
intervertebral discs, pubic symphysis, joint menisci
stops bones from moving back and forth
growth of cartilages
2 models, appositional and interstitial
appositional
chondroblasts in the surrounding membrane (perichondrium) secrete new matrix against external face of existing cartilage
interstitial
chondrocytes inside the cartilage divide and secrete new matrix expanding cartilage from within-inside of piece
cartilage forms..
the model from which bone is formed
calcification of cartilage occurs..?
during normal bone growth and old age