visceral

Short definition from Wiktionary

Adjective

1. 1
   Of or relating to, made up of, or positioned among or within, the viscera (“internal organs of the body, especially those contained within the abdominal and thoracic cavities”).
2. 2
   Of or relating to, made up of, or positioned among or within, the viscera (“internal organs of the body, especially those contained within the abdominal and thoracic cavities”): Of a disease: involving the viscera.
3. 3
   Of or relating to, made up of, or positioned among or within, the viscera (“internal organs of the body, especially those contained within the abdominal and thoracic cavities”): Of or relating to the viscera or bowels regarded as the origin of a person's emotions; hence (figuratively), relating to or having deep internal feelings or sensibility.
4. 4
   Having to do with the response of the body as opposed to the intellect, as in the distinction between feeling and thinking.
5. 5
   (Apparently) situated in the viscera or the interior of the body.