neural arch vs vertebral arch

neural arch and vertebral arch both are nouns.

Word	Noun	Adjective	Verb	Adverb
neural arch	Yes	No	No	No
vertebral arch	Yes	No	No	No

As nouns, neural arch and vertebral arch are synonyms defined as:

neural arch and vertebral arch: a structure arising dorsally from a vertebral centrum and enclosing the spinal cord

neural arch (noun)	vertebral arch (noun)
a structure arising dorsally from a vertebral centrum and enclosing the spinal cord	a structure arising dorsally from a vertebral centrum and enclosing the spinal cord