Articular capsule
| Joint capsule | |
|---|---|
 |
|
| Typical joint | |
 |
|
| Diagrammatic section of a diarthrodial joint. | |
| Latin | capsula articularis |
| Gray's | subject #68 282 |
An articular capsule (or joint capsule) is an envelope surrounding a synovial joint.[1]
Contents |
Layers [edit]
Each capsule consists of two layers:
- an outer layer (stratum fibrosum) composed of avascular white fibrous tissue
- an inner layer (stratum synoviale) which is a secreting layer, and is usually described separately as the synovial membrane.
On the inside of the capsule, articular cartilage covers the end surfaces of the bones that articulate within that joint.
The outer layer is highly innervated by the same nerves which perforate through the adjacent muscles associated with the joint.
Pathology [edit]
Frozen shoulder (adhesive capsulitis) is a disorder in which the shoulder capsule becomes inflamed.
Plica Syndrome is a disorder in which the synovial plica becomes inflamed and causes abnormal biomechanics in the knee.
See also [edit]
- articular capsule of the humerus
- articular capsule of the knee joint
- capsule of hip joint
- capsule of temporomandibular joint
- atlantoaxial articular capsule
- capsule of atlantooccipital articulation
Additional images [edit]
-
Left clavicle. Inferior surface.
-
Right hip bone. External surface.
-
Right knee in extension. Deep dissection. Posterior view.
-
Right knee in extension. Deep dissection. Posterior view.
References [edit]
External links [edit]
This article incorporates text from a public domain edition of Gray's Anatomy.
|
|||||||||||||||||||
 |
This musculoskeletal system article is a stub. You can help Wikipedia by expanding it. |
