anulus fibrosus
anatomy
Quick Summary
The annulus fibrosus is the tough, fibrous outer ring of an intervertebral disk. This ring is composed of strong, laminated fibrous tissue and surrounds a soft, jelly-like center called the nucleus pulposus. The annulus fibrosus plays a crucial role in the structure and function of the spine, helping to absorb shock and allow for movement between vertebrae. It is a key component of symphyses, a type of cartilaginous joint found in the vertebral column.12
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