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. **Understand the Types of Joints**:
- There are different types of joints in the human body, including fibrous joints, cartilaginous joints, and synovial joints. Each type has distinct characteristics.

2. **Identify the Characteristics of Fibrous Joints**:
- Fibrous joints are connected by dense connective tissue, primarily collagen. They are generally immovable, meaning they do not allow for movement between the bones.

3. **Focus on Sutures**:
- Sutures are a specific type of fibrous joint found between the bones of the skull. They are characterized by their immovable nature and the presence of dense fibrous connective tissue that fuses the bones together.

4. **Evaluate Other Options**:
- **Synovial Joints**: These joints are highly mobile and contain a synovial cavity filled with fluid, allowing for a wide range of movements.
- **Cartilaginous Joints**: These joints allow for limited movement and are connected by cartilage, not dense fibrous tissue.
- **Ball and Socket Joints**: These are a type of synovial joint that allows for the most freedom of movement, found in the shoulder and hip.

5. **Conclusion**:
- Given that the question specifically asks about joints that are fused end-to-end with dense fibrous connective tissue, the correct answer is **sutures**.

### Final Answer:
The joints which are fused end-to-end with the help of dense fibrous connective tissue are referred to as **sutures**.