The matrix of cartilage (except elastic) is mainly composed of  

Options

A. collagen fibres
B. elastin fibres
C. both 1 & 2
D. none

Answer

To answer the question about the composition of the matrix of cartilage (except elastic), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Composition of Cartilage**:
- Cartilage is a type of connective tissue that has a specific matrix composition. The matrix consists of various components, including fibers and a protein-polysaccharide matrix.

2. **Identify the Types of Fibers in Cartilage**:
- The main types of fibers found in cartilage are collagen fibers and elastin fibers. However, the question specifies to exclude elastic fibers.

3. **Focus on Collagen Fibers**:
- Collagen fibers are the primary structural component of cartilage (except elastic). They provide strength and support to the cartilage matrix.

4. **Consider Other Components**:
- In addition to collagen fibers, the cartilage matrix also contains glycosaminoglycans and proteoglycans, which contribute to its properties. However, the question specifically asks about the main component excluding elastic fibers.

5. **Conclude the Answer**:
- Since the question asks for the main component of the cartilage matrix (except elastic), the correct answer is collagen fibers.

### Final Answer:
The matrix of cartilage (except elastic) is mainly composed of **collagen fibers**.