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Histology: Cartlage
WVSOM: Cartilage
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 |