Definition

Noun: * An immovable joint (especially between the bones of the skull): A type of joint where bones are connected by dense fibrous connective tissue, allowing for little to no movement. This provides a strong, stable connection.

Usage

• The term "fibrous joint" is a technical anatomical term. It is used in medical, biological, and anatomical contexts to classify and describe specific types of bone connections.
• It is often contrasted with "cartilaginous joint" (slightly movable) and "synovial joint" (freely movable).

Examples

• The sutures of the skull are classic examples of a fibrous joint.
• A syndesmosis, such as the connection between the tibia and fibula in the lower leg, is a type of fibrous joint that permits slight movement.
• Gomphoses, which attach teeth to their sockets, are also categorized as fibrous joints.

Advanced Usage

• Functional Classification: In functional anatomy, fibrous joints are classified as "synarthroses," meaning immovable joints.
• Pathology: Abnormal fusion or ossification of a fibrous joint (like a cranial suture fusing prematurely) is a medical condition known as "craniosynostosis."

Variants and Related Words

• Synarthrosis (n): The functional term for an immovable joint; a fibrous joint is a type of synarthrosis.
• Suture (n): A specific type of fibrous joint found only between the bones of the skull.
• Syndesmosis (n): A fibrous joint where bones are connected by a ligament, allowing for minimal movement (e.g., between the tibia and fibula).
• Gomphosis (n): A peg-and-socket type of fibrous joint (e.g., a tooth in its alveolar socket).

Synonyms

• Immovable joint
• Synarthrosis (functional synonym)

Antonyms

• Synovial joint (freely movable joint)
• Diarthrosis (functional term for a freely movable joint)
• Cartilaginous joint (slightly movable joint)

Noun

1. an immovable joint (especially between the bones of the skull)