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Questions and Answers
What is the primary constituent of hyaline cartilage?
What is the primary constituent of hyaline cartilage?
- Type II collagen (correct)
- Proteoglycans
- Water and inorganic salts
- Non-collagenous proteins
What is the role of chondrocytes in maintaining hyaline cartilage?
What is the role of chondrocytes in maintaining hyaline cartilage?
- Forming isogenous groups
- Providing tensile strength and shape to cartilage
- Secreting enzymes that degrade cartilage matrix
- Synthesizing and maintaining extracellular matrix (correct)
Which component of cartilage gives it its flexibility and lubricating capabilities?
Which component of cartilage gives it its flexibility and lubricating capabilities?
- Water and inorganic salts (correct)
- Proteoglycans
- Non-collagenous proteins
- Collagen
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Study Notes
- Chondrocytes synthesize and maintain extracellular matrix in hyaline cartilage.
- Chondrocytes can be singular or in isogenous groups.
- Isogenous groups form from recently divided chondrocytes.
- Chondrocytes secrete enzymes that degrade cartilage matrix.
- Cartilage is mostly made up of water and inorganic salts.
- Remaining constituents are collagens, PGs, and non-collagenous proteins.
- Type II collagen makes up 90%-95% of collagen in hyaline cartilage.
- Collagen provides tensile strength and shape to cartilage.
- Water and inorganic salts give cartilage its flexibility and lubricating capabilities.
- Dry weight of cartilage matrix is 40%-70% collagen.
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