Joint capsule

Joint Capsule

The Joint Capsule is an essential part of the human skeletal system, providing stability and mobility to the joints. It is a complex structure that surrounds the joint and seals it into a joint cavity. The joint capsule is filled with synovial fluid, which lubricates the joint and reduces friction.

Structure

The joint capsule is composed of two layers: the outer fibrous layer and the inner synovial layer. The outer fibrous layer, or fibrous capsule, is tough and flexible, providing strength and stability to the joint. The inner synovial layer, or synovial membrane, produces synovial fluid and is responsible for the nutrition of the joint structures.

Function

The primary function of the joint capsule is to maintain the stability of the joint while allowing for mobility. The joint capsule achieves this by limiting the range of motion of the joint and preventing dislocation. The synovial fluid within the joint capsule also helps to reduce friction between the joint surfaces, allowing for smooth movement.

Clinical Significance

Inflammation of the joint capsule, known as capsulitis, can cause pain and restricted movement. This can occur as a result of injury, overuse, or underlying medical conditions such as rheumatoid arthritis or osteoarthritis. Treatment for capsulitis typically involves rest, physical therapy, and in some cases, medication or surgery.

See Also

• Joint
• Synovial fluid
• Fibrous capsule
• Synovial membrane
• Capsulitis
• Rheumatoid arthritis
• Osteoarthritis

Joint capsule Resources
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