Bone and cartilage Flashcards
(25 cards)
Three types of cartilage
Hyaline
elastic
fibrocartilage
Four types of collagen
type one: tendons, dermis, bones
type II: hyaline cartilage
type III: reticulin
type iv: basal lamina
What things do all the types of cartilage have
All have chondrocytes
all have a matrix containing glucoaminoglycans and hyaluronic acid
What is meant by a vascular cartilage
No blood vessels
How do you get chondrocytes
mesenchymal stem cells
chondroblasts when differentiated
chondrocytes were entrapped in Lucunae
How do chondrocytes laydown extracellular matrix
By vesicles
Does hyaline cartilage contain a Perivhondrium
Yes
however not present on articulating surfaces
Chondrocytes are present singularly or in groups explain
Small clusters called I suggest groups, separate from each other when chondrocytes start laying down extrasolar matrix
As long brains develop some hyaline cartilage remains in two areas
Articulating surfaces
epiphysis plates
Where can hyaline cartilage be found
Trachea
nose articulating joints
perichondrium is made up of
Dense connective tissue
2 types of growth in hyaline cartilage are
Grew from periphery= appositional growth
growth from centre= interstitial growth
Elastic cartilage made up of what kind of collagen
2
As elastic collagen contain perichondrium
Yes
Where can elastic collagen be found
Pinna of the year
epiglottis
Fibre cartilage type of collagen it contains
Type of collagen it contains Type one and type II
Does fibre collagen contain perichondrium
No
Where is fibro collagen found
Intervertebral discs
endochondrial ossification occurs in what bones
Long bones
What is the collar of bone first seen during endochondral ossification called
Periosteal a.k.a. compact bone
During endochondral ossification nutrient artery does what
Calcified cartilage supplies blood depositing osteogenic cells
During endochandrail ossification the Medulla calcifies to what kind of bone
Cancellous bone
When osteoblast become osteocytes they change phenotype
Send out filiopodia to communicate with other osteocytes
Osteoarthritis
Age-related
mechanical failure of the articular cartilage a.k.a. hyaline
narrowing of the joint space bones rub against bone
