innervation

noun
in·ner·va·tion | \ˌin-(ˌ)ər-ˈvā-shən, in-ˌər- \

Medical Definition of innervation 

1 : the process of innervating or the state of being innervated especially : the nervous excitation necessary for the maintenance of the life and functions of the various organs

2 : the distribution of nerves to or in a part

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