Synovial joints

Definition

Synovial joints are freely movable joints found in the human body. They are characterized by a fluid-filled synovial cavity that reduces friction between articulating bones.

5 Must Know Facts For Your Next Test

1. Synovial joints include major types like hinge, ball-and-socket, pivot, and saddle joints.
2. The synovial fluid within these joints acts as a lubricant to facilitate smooth movement.
3. The joint capsule encloses the synovial cavity and provides stability to the joint.
4. Articular cartilage covers the ends of bones in synovial joints, reducing wear and tear during movement.
5. Ligaments connect bones in synovial joints, providing additional support and limiting excessive movement.

Review Questions

• What role does synovial fluid play in synovial joints?
• Name three types of synovial joints and give an example of each.
• How do ligaments contribute to the function of synovial joints?

Related terms

Cartilage: A flexible connective tissue found at the ends of bones in many joints, including synovial ones.

Ligament: A fibrous connective tissue that connects bones together at a joint.

Hinge Joint: A type of synovial joint that allows movement primarily in one plane, such as the elbow or knee.