sensory system vs sensation

sensory system and sensation both are nouns.

Word	Noun	Adjective	Verb	Adverb
sensory system	Yes	No	No	No
sensation	Yes	No	No	No

As nouns, sensation is a hypernym of sensory system; that is, sensation is a word with a broader meaning than sensory system:

Other hypernyms of sensory system include sense, sensory faculty, sentience, sentiency.

sensory system (noun)	sensation (noun)
the body's system of sense organs	an unelaborated elementary awareness of stimulation
a particular sense	the faculty through which the external world is apprehended
	a general feeling of excitement and heightened interest
	someone who is dazzlingly skilled in any field
	a state of widespread public excitement and interest