Normal Spinal Cross Section

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Normal Spinal Cross Section

Intervertebral discs are fibro-cartilaginous discs that lie between the vertebral bodies of the vertebrae of the cervical, thoracic, and lumber regions of the body. Their primary purpose is to provide shock absorption between adjacent vertebrae. They also act as cartilaginous joints, enabling mobility in the spine. There are a total of twenty-three intervertebral discs in the spinal column. Each disc is composed two main layers: an outer fibrous layer made of concentric layers of fibrocartilage, referred to as the annulus fibrosis; and an inner soft, pulpy layer called the nucleus pulposus.

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Parent Topic: Intervertebral Discs
Topic Media ID: oml_0011a