| Question |
Answer |
| What does collagen usually stain |
acidiphilic |
| What is the territorial matrix |
area adjeacent to chondrocytes. Lacks fibers and can affect staining |
| What is the perichondrium |
vascular layer around the cartilage that provides support |
| 2 layers of perichondrium |
fibrous layer and chondrogenic layer |
| What makes up the fibrous layer |
type 1 collagen and fibroblast |
| Is the fibrous layer vascular |
YES |
| What makes up the chondrogenic layer |
undifferentiated cells that give rise to chondrocytes |
| Describe appositional growth |
cells of chondrogenic layer proliferate and turn to chondroblast. They then lay down cartilage layer by layer |
| describe interstital growth |
chondrocytes within the cell expand divide. Their daughter cells then lay down cartilage. About 70% water |
| Unique feature of elastic cartilage |
scratchy appearence, fewer nest cells, and type 2 collagen |
| Unique features of Fibrocartilage |
No perichondrium, type 1 collagen fibers, chondrocytes line up on the edge of fibers, HERRINGBONE, deeply acidiphilic |
| Where is fibrocartilage usually found |
tendon insertions, pubic symphysis, annulus fibrosus. Anywhere tensile strength and support is needed |
| What part of the bone does the diaphysis develop into |
the longer parts |
| Epiphysis makes up which part of the bone |
the ends or heads of the bones |
| What are the five zones hyaline growth taking place during endochondrial osstification |
Zone of ...... Reserve, Proliferation, hypertrophy, calcification, osstification |
| What can happen if you have increased amount of sex hormones during puberty |
the gorwth plate(s) can calcify |
| What is caused by the faliure of cartilage calcification and endochondral osstification. Symptoms usually occur in rapidly growing bones |
Rickets |
Buen Viaje lv.2 ch 8
