Galen: On the Natural Faculties by Galen

Chapter I

83 words  |  Chapter 31

A recapitulation of certain points previously demonstrated. Every part of the animal has an attractive and an alterative (assimilative) faculty; it attracts the nutrient juice which is proper to it. Assimilation is preceded by adhesion (_prosphysis_) and that again, by application (_prosthesis_). Application the goal of attraction. It would not, however, be followed by adhesion and assimilation if each part did not also possess a faculty for _retaining in position_ the nutriment which has been applied. _A priori_ necessity for this _retentive_ faculty.