The difference between bone and cartilage in terms of blood supply is  

Options

A. bone is a vascular, cartilage is highly vascular
B. bone is highly vascular, cartilage is avascular
C. both bone & cartilage are avascular
D. both bone & cartilage are highly vascular

Answer

### Step-by-Step Solution:

1. **Define Bone and Cartilage**:
- Bone is a living tissue that forms the skeleton of the body. It is a type of connective tissue that provides structural support and protection for organs.
- Cartilage is also a type of connective tissue, but it is more flexible than bone and is found in various parts of the body, such as the nose, ears, and joints.

2. **Understand Blood Supply Terms**:
- **Vascular**: This term refers to tissues that contain blood vessels. Vascular tissues have a rich blood supply, which allows for efficient nutrient and oxygen delivery.
- **Avascular**: This term refers to tissues that do not contain blood vessels. Avascular tissues rely on diffusion for nutrient and oxygen supply, making them less efficient in terms of blood supply.

3. **Analyze Bone's Blood Supply**:
- Bone is classified as a highly vascularized tissue. This means it has a significant number of blood vessels, which supply it with nutrients and oxygen, and also facilitate the removal of waste products.

4. **Analyze Cartilage's Blood Supply**:
- In contrast, cartilage is classified as avascular. It lacks blood vessels, which means it does not have a direct blood supply. Instead, it receives nutrients and oxygen through diffusion from surrounding tissues.

5. **Conclusion**:
- The key difference between bone and cartilage in terms of blood supply is that bone is highly vascularized (contains many blood vessels), while cartilage is avascular (lacks blood vessels).

### Final Answer:
- The difference between bone and cartilage in terms of blood supply is that **bone is highly vascularized, whereas cartilage is avascular**.