The canalis vertebralis is a vital structure in the spinal column that houses and protects the spinal cord. Synonyms for the canalis vertebralis include vertebral canal, spinal canal, neural canal, and spinal cavity. The term vertebral canal is commonly used in anatomy textbooks and medical literature. The neural canal describes the hollow space through which the spinal cord passes. The spinal cavity is another term used to denote the space within the vertebral column where the spinal cord is located. Regardless of the synonym used, understanding the anatomy and function of the canalis vertebralis is important for medical professionals and anyone interested in learning more about the human body.