1) Enteroceptor 2) Receptor 3) Sense organ 4) Sensory receptor 1) Enteroceptor 
An interoceptor is a sensory receptor that detects stimulus within the body. Examples of stimuli that would be detected by interoceptors include blood pressure and blood oxygen level. ...
One of the various forms of small sensory end organs (receptors) situated within the walls of the respiratory and gastrointestinal tracts or in other viscera. ... Origin: inter-+ L. Capio, to take ... (05 Mar 2000) ... 
Type: Term Pronunciation: in′tĕr-ō-sep′tŏr Definitions: 1. One of the various forms of small sensory end organs (receptors) situated within the walls of the respiratory and gastrointestinal tracts or in other viscera.
In physiology, an interoceptor is a sensory receptor which receives stimuli from within the body. The term is usually used to describe a sensory receptor which receives stimuli from the gut.
[n] - any receptor that responds to stimuli inside the body
enteroceptor noun any receptor that responds to stimuli inside the body
See Receptor.
a receptor, esp. of the viscera, responding to stimuli originating from within the body.