Cervical Spine Pathology Facet Zygoapophysial Joint Syndrome chiropractic multimedia. Shows a lateral view of a normal C6-7 facet joint and its medial branch nerve innervation, during lateral flexion. The movie shows the path of the two medial branch nerves innervating the facet joint capsule. Then the capsule is irritated, and the pain impulses are shown traveling up the medial branch nerves.
The facet joints in the spine have articular cartilage covering the bone ends.
They are surrounded by a fibrous capsule with an inner synovial membrane that secretes fluid. The capsules in the lower cervical spine are looser than the rest of the spine, in order to permit the facets to glide as part of their movement. The capsule has nerve endings that are used for movement awareness, pain sensation and controlling protective muscle reflexes. Cervical Spine Pathology Facet Zygoapophysial Joint Syndrome chiropractic multimedia.
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