sexual activity vs innervation

sexual activity and innervation both are nouns.

Word	Noun	Adjective	Verb	Adverb
sexual activity	Yes	No	No	No
innervation	Yes	No	No	No

sexual activity (noun)	innervation (noun)
activities associated with sexual intercourse	the distribution of nerve fibers to an organ or body region
	the neural or electrical arousal of an organ or muscle or gland