receptive vs afferent

receptive is not a noun while afferent is a noun.

Word	Noun	Adjective	Verb	Adverb
receptive	No	Yes	No	No
afferent	Yes	Yes	No	No

receptive (noun)	afferent (noun)
	a nerve that passes impulses from receptors toward or to the central nervous system

receptive (adjective)	afferent (adjective)
ready or willing to receive favorably	of nerves and nerve impulses; conveying sensory information from the sense organs to the CNS
able to absorb liquid (not repellent)
of a nerve fiber or impulse originating outside and passing toward the central nervous system
open to arguments, ideas, or change