/summa/FP/FPIX/FP_Q80:
Next we consider the appetitive powers, concerning which there are four heads of consideration: first, the appetitive powers in general; second, sensuality; third, the will; fourth, the free-will. Under the first there are two points of inquiry:
(1) Whether the appetite should be considered a special power of the soul?
(2) Whether the appetite should be divided into intellectual and sensitive as distinct powers?