A recent research suggests that organs like heart and lungs may have smell receptors and may detect different odors in the food.

Researchers from the German Research Centre for Food Chemistry, experimented with biogenic amines, which are the odorant chemical messengers found in food items. The tested the reaction of blood cells to different pungent food chemicals. It was noted that the blood cells were attracted towards odorant compounds food in foods like chocolate.
Professor Peter Schieberle, lead scientist says that signals from all the smell receptors are processed in the brain to create an overall impression on that particular food.
However, the research is in the preliminary stage and scientists are determined to explore further on the topic.
Source-Medindia