Which type of synoviocyte phagocytoses cell debris and waste inside the joint cavity?

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Prepare for the CMS II Rheumatology E1 Exam with our comprehensive quiz. Study using flashcards and multiple-choice questions, each with hints and explanations. Get ready for success!

Multiple Choice

Which type of synoviocyte phagocytoses cell debris and waste inside the joint cavity?

Explanation:
The key idea here is that debris and waste inside the joint are cleared by macrophage-like cells in the synovial lining. These Type A synoviocytes resemble macrophages and actively phagocytose cell debris and waste within the joint cavity, helping keep the space clean and providing immune-related functions. In contrast, Type B fibroblast-like synoviocytes mainly produce components of the synovial fluid, such as hyaluronan, to lubricate and nourish the joint. So, the cell type responsible for phagocytosis is the Type A synoviocyte.

The key idea here is that debris and waste inside the joint are cleared by macrophage-like cells in the synovial lining. These Type A synoviocytes resemble macrophages and actively phagocytose cell debris and waste within the joint cavity, helping keep the space clean and providing immune-related functions. In contrast, Type B fibroblast-like synoviocytes mainly produce components of the synovial fluid, such as hyaluronan, to lubricate and nourish the joint. So, the cell type responsible for phagocytosis is the Type A synoviocyte.

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