Meaning of apetito irascible by Felipe Lorenzo del Río

The anthropological conception of Plato, Greek philosopher of the 4th century b. C., is dualistic, as well as the subsequent philosophers defenders of the immortality of the soul. The anthropological dualism understands the man as a duality of substances: the immortal soul and the mortal body. As well, Plato distinguishes the soul three primary functions: the rational that associated with the head, the irascible which related to the concupiscible that associated with the belly and chest. The irascible appetite is that irascible function also called " 34 noble passions; as opposed to " the low passions ". My guess is that the Association to the chest is based on the fact that the situations of irascibility are accompanied by strong heart disturbances.