innervation. Distribution of the nerves in a part.
inoculation. The introduction of a specific virus into the system.
inorganic. Devoid of organized structure.
in situ (Latin). In position.
integument. The enveloping membrane of the body.
intercellular. Between the cells.
intermittant. Occurring at intervals.
interosseous. Between bone tissue.
interstices. Spaces, intervals, pores.
interstitial. Lying or placed between.