Chapter 4: Fibrocartilage (exam2) Flashcards
What are some major structural features of fibrocartilage?
chondrocytes, fibrocytes, lots of collagen I, no perichondrium, and it is avascular
in fibrocartilage chondrocytes are always what shape?
round
What are the fiber types within fibrocartilage?
dominant type is collagen I and there is some collagen II (some hyaline matrix)
Fibrocartilage is avascular because of what?
it has no perichondrium
What is the function of fibrocartilage?
- to provide strength; resistant to stretch
2. shock absorber; resistant to compressive forces
because fibro cartilage is resistant to stretch it is said to have a high what?
a high tensile strength
fibrocartilage has a high tensile strength from what?
collagen I fibers
Fibrocartilage is able to absorb compressive forces due to what?
the hyaline cartilage matrix (collagen II)
What are some limitations to fibrocartilage?
without a perichondrium there is no appositional healing meaning all healing is 100% scare tissue no heal so good
initially, fibrocartilage is more like what
dense regular ct with fibroblasts and fibrocytes
to resist compression and force the fibroblasts produce what?
some proteoglycans and some GAG’s
fibroblasts will change into what due to the pressure from accumulating molecules?
chondrocytes
If fibrocartilage undergoes more compressive forces what will you end up with?
more hyaline matrix
if fibrocartilage undergoes more shearing/pulling forces then you will end up with what?
more collagen I by fibroblasts that are there initially
In fibrocartilage the fibroblasts will remain and do what?
mature into fibrocytes
