Foramen, intervertebral

What is Foramen, intervertebral?

Foramen, intervertebral meaning When spinal vertebrae are articulated with each other the bodies form a strong pillar for the support of the head and trunk, and the vertebral foramina constitute a canal for the protection of the spinal cord. Between every pair of vertebrae are two apertures (openings), the intervertebral foramina allow for the passage of the spinal nerve root, dorsal root ganglion, and the spinal artery of the segmental artery, communicating veins between internal and external plexuses, recurrent meningeal nerves, and transforaminal ligaments. Their size is variable due to placement, pathology, spinal loading, and posture. They can be occluded by arthritic degenerative changes and space-occupying lesions like tumors, metastases and spinal disc herniations.

 

reference: national Cancer Institute – Glossary for Registrars

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