spinal canal vs vertebral canal

spinal canal and vertebral canal both are nouns.

Word	Noun	Adjective	Verb	Adverb
spinal canal	Yes	No	No	No
vertebral canal	Yes	No	No	No

As nouns, spinal canal and vertebral canal are synonyms defined as:

spinal canal and vertebral canal: the canal in successive vertebrae through which the spinal cord passes

Other synonyms of spinal canal include canalis vertebralis.

spinal canal (noun)	vertebral canal (noun)
the canal in successive vertebrae through which the spinal cord passes	the canal in successive vertebrae through which the spinal cord passes