The correlation of structure and function in organisms has many features which appeal to any one who observes the activities of a living individual. What is more natural than to expect that organs which differ structurally should have unlike functions? And in truth the view finds a substantiation in the familiar facts of physiology, which show a remarkable differentiation of animal structure in adaptation to specific uses. Do not muscle and gland, nerve and connective tissue fiber, exemplify in their anatomic individuality the unlikeness of the uses to which they are put in the body? Accordingly we have come to associate certain physiologic phenomena with definite types of structures.
PHRENOLOGIC TENDENCIES IN THE INTERPRETATION OF MENTAL PHENOMENA. JAMA. 2012;307(14):1466. doi:10.1001/jama.2012.379