A fibrous joint is a type of joint where bones are connected by fibrous tissue. According to the provided reference, these joints are often referred to as fixed or immovable joints because they generally do not allow for movement between the bones.
Characteristics of Fibrous Joints
- Connection via Fibrous Tissue: The primary characteristic is the connection of bones through strong fibrous tissue.
- Limited or No Movement: A key feature is the restricted or absent movement between the bones. This immobility provides stability and protection. The reference highlights that they are often called fixed or immovable joints because of this.
- Examples: Examples include sutures of the skull, where the bones of the cranium are interlocked and held together by fibrous connective tissue, and syndesmoses like the interosseous membrane between the radius and ulna in the forearm.
Types of Fibrous Joints
While the reference doesn't specify the types of fibrous joints, they are generally classified as:
- Sutures: Found in the skull, these joints have short fibers connecting the bones.
- Syndesmoses: Bones are connected by longer fibers, allowing for slight movement (e.g., distal tibiofibular joint).
- Gomphoses: Occur between teeth and their sockets in the jaw.
Importance of Fibrous Joints
Fibrous joints play a crucial role in:
- Stability: They provide stability to bony structures.
- Protection: They safeguard internal organs, such as the brain within the skull.
- Structural Support: They contribute to the overall structural integrity of the skeleton.
| Feature | Description |
|---|---|
| Definition | Joints where bones are connected by fibrous tissue. |
| Movement | Generally immovable or allow very limited movement. |
| Primary Function | Provide stability, protection, and structural support. |
| Tissue Type | Dense fibrous connective tissue. |
