Spinous process

Definition

The spinous process is a bony projection off the posterior (back) part of each vertebra in the vertebral column. It serves as an attachment point for muscles and ligaments that move and stabilize the spine.

Related terms

Vertebra: A single bone of the vertebral column, which houses and protects the spinal cord while supporting the body’s structure.

Intervertebral Discs: Cushion-like pads situated between each vertebra, acting as shock absorbers to prevent bones from rubbing against each other.

Ligaments: Tough, fibrous tissue that connects bones or cartilage at a joint or supports organs, attaching especially to the vertebrae at various points including around the spinous processes