Question

In the given diagram of a section of hyaline cartilage, the different parts have been indicated by alphabets. Choose the answer in which these alphabets correctly match the parts they indicate.

• A. A- Perichondrium; B- Chondrocyte; C- Lacuna; D- Capsular matrix
• B. A- Blood vessel; B- Chondrocyte; C- Lacuna; D- Perichondrium
• C. A- Matrix; B- Chondrocyte; C- Lacuna; D- Perichondrium
• D. A- Matrix; B- Lacuna; C- Chondrocyte; D- Capsular matrix

Answer 1

Answer: (C)

A- Matrix; B- Chondrocyte; C- Lacuna; D- Perichondrium

A cartilage cell is present in a fluid-filled space, the cartilage lacuna.

• Matrix essentially consists of water, proteoglycans (proteins and carbohydrates), some lipids, collagen, noncollagenous protein and collagen fibres.
• Mature cells are larger in size, more rounded, but still have a few surface projections and are known as chondrocytes.
• The free surfaces of hyaline cartilage are covered by a fibrous membrane called the perichondrium but it is not present in fibrous cartilage.
  

So the correct answer is 'A- Matrix; B- Chondrocyte; C- Lacuna; D- Perichondrium'.