ventral root vs ventral horn

ventral root and ventral horn both are nouns.

Word	Noun	Adjective	Verb	Adverb
ventral root	Yes	No	No	No
ventral horn	Yes	No	No	No

As nouns, ventral root and ventral horn are synonyms defined as:

ventral root and ventral horn: one of the two roots of a spinal nerve that passes ventrally from the spinal cord and that consists of motor fibers

Other synonyms of ventral root include anterior horn, anterior root.

ventral root (noun)	ventral horn (noun)
one of the two roots of a spinal nerve that passes ventrally from the spinal cord and that consists of motor fibers	one of the two roots of a spinal nerve that passes ventrally from the spinal cord and that consists of motor fibers