Joints, Synovial Fluid and Cartilage Flashcards
Name three Fibrous Joints (3)
Periodontal Ligament
Cranial Sutures
Interosseous Membranes
Primary Cartilaginous Joints only have what type of cartilage
Hyaline
Secondary Cartilaginous Joints only have what type of cartilage
Hyaline and Fibrocartilage
Synchondrosis are what type of Cartilaginous joint
Primary
Symphysis are what type of Cartilaginous Joint
Secondary
Articular Cartilage is also known as what type of cartilage
Hyaline
What is present in superficial/tangenital layer of articular cartilage
flattened chondrocytes that produce collagen and glycoproteins (e.g. lubricin)
what is present in transitional and deep layer of articular cartilage
round chondrocytes that produce proteoglycans such as aggrecan
How much water is in articular cartilage
75%
What are glycoproteins
(e.g. lubricin): proteins to which oligosaccharide chains are attached, i.e. more a protein than a carbohydrate!
what are proteoglycans
(e.g. aggrecan): proteins that are heavily glycosylated (= a protein core to which one or more GAGs attach), i.e. tend to be more carb than protein!
what are glycosaminoglycans
e.g. hyaluronic acid): long unbranched polysaccharides, which are highly polar and thus attract water
How much articular cartilage at patella
5-6mm
Does synovial have epithelial lining
No
What do Type A Synoviocytes do
Remove debris
Contribute to synovial fluid production
