Cartilage Flashcards
Where is cartilage located?
trachea, ear, respiratory tree and joints.
What is the mature cell type found in cartilage? what are they surrounded by? and what is located in this surrounding layer?
chondrocytes
perichondrium (immature firboblasts are here which mature to chondroblasts and further mature to chondrocytes)
is cartilage avascular or vascular?
avascular
What do chondrocytes contain?
lipids, glycogen, well developed RER (highly active in protein synthesis), golgi
Can cartilage regenerate quickly?
NO, limited mitosis.
What act as spacers for collagen?
PG (made up of GAGs and collagen)
Major difference between the matrix of cartilage and matrix of bone?
matrix of cartilage is NON mineralized and AVASCULAR.
What are the three main types of cartilage? which is the most common?
hyaline, elastic and fibrocartilage.
hyaline.
Where does hyaline cartilage normally get its blood supply from?
surrounding adipose tissue (highly vascular)
Where is hyaline cartilage found?
articular surfaces of joints, tracheal rings, bronchi, larynx, nose, rib cartilage.
two big characteristics of hyaline cartilage are?
resilience and pliability
What are isogenous groups?
cells located right next to one another because they have just recently divided.
what is a territorial matrix?
newer matrix, surrounds cells that have recently divided, close to one another.
what is an interterritorial matrix?
older matrix, around cells that have not recently divided.
What are two types of cartilage growth?
- appositional: cells growing from both ends and moving toward the center. main type of growth, more mature.
- interstitial: isogenous groups growing by mitosis, grows from center and moves outwards. during early growth/development
