Joints which are fused end - to - with the help of dense fibrous connective tissue are referred to as

Options

A. Sutures
B. Synovial joints
C. Cartilaginous joint
D. ball and socket joint

Answer

To solve the question regarding the type of joints that are fused end-to-end with the help of dense fibrous connective tissue, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**:
- The question asks about joints that are fused together using dense fibrous connective tissue.

2. **Identifying the Types of Joints**:
- There are several types of joints in the human body, including:
- Sutures
- Synovial joints
- Cartilaginous joints
- Ball and socket joints

3. **Analyzing Each Option**:
- **Option 1: Sutures**
- Sutures are fibrous joints found between the bones of the skull. They are indeed fused end-to-end with dense fibrous connective tissue. This makes this option a strong candidate for the correct answer.

- **Option 2: Synovial Joint**
- Synovial joints are characterized by a fluid-filled joint cavity, allowing for a wide range of motion. They do not involve dense fibrous connective tissue fusing the bones together. Thus, this option is incorrect.

- **Option 3: Cartilaginous Joint**
- Cartilaginous joints are connected entirely by cartilage (e.g., between the manubrium and sternum). They allow for more movement than fibrous joints. Therefore, this option is also incorrect.

- **Option 4: Ball and Socket Joint**
- Ball and socket joints (like the shoulder and hip joints) are a type of synovial joint that allows for rotational movement. They do not involve dense fibrous connective tissue fusing the bones, making this option incorrect as well.

4. **Conclusion**:
- After analyzing all the options, the only type of joint that fits the description of being fused end-to-end with dense fibrous connective tissue is **Option 1: Sutures**.

### Final Answer:
- The correct answer is **Sutures**.