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Cartilage
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What is the composition of ground substance?
Glycosaminoglycans (GAGs)
Proteoglycans
Adhesive glycoproteins (chondronectin)
Where does the growth of long bones occur?
Epiphyseal plate
What collagen type is found in hyaline cartilage?
Collagen type II
What collagen type is found in elastic cartilage?
Hyaline cartilage (type II) + elastic fibers
What cartilage type is found in fibrocartilage?
Hyaline cartilage (type II) + collagen type I
What cells produce collagen type II fibrils of hyaline cartilage?
Chondrocytes
Binding of collagen type II to the ground substance occurs through...
Negative charges of the GAGs - electrostatic interactions
Chondronectin
How do nutrients reach cartilage if it's avascular?
The (-) charge of GAGs pulls nutrients in from the blood vessels of the perichondreum
Activates chondrocytes
Somatotropin C (via Growth Hormone)
Thyroxine
Testosterone
Inhibits chondrocytes
Cortisol
Cortisone
Estradiol
Breaks down the protein core of proteoglycans and destroying the rigidity of hyaline cartilage
Papain
The area surrounding the lacunar spaces of chondrocytes that's high in proteoglycans/GAGs
Territorial matrix
The area between chondrocytes that's high in collagen type II
Interterritorial matrix
The type of growth that occurs in articular cartilage and on the epiphyseal plate of long bones
Interstitial growth
The type of cartilage growth that occurs by forming isogenous groups
Interstitial growth
A ruptured IV disc is caused by rupture of which tissue?
Annulus fibrous tissue ruptures allowing the nucleus pulposus to seep through
Fibrocartilage is found in these 3 locations
IV discs
Symphysis pubis
Menisci of the knee joint
Elastic cartilage is found in these 4 locations
Pinna of the ear
External and internal auditory tubules
Epiglottis
Larynx
Perichondreum is not found in these two cartilage types
Fibrocartilage
Articular cartilage
Author
cortneye
ID
66953
Card Set
Cartilage
Description
Micro Anatomy Mini 2
Updated
2011-02-17T05:13:33Z
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