4815.) Anatomy, Physiology, and Pathology. 291 
and of the last, or intellectual, those which feel, think, and will; 
and by the latter of these the former is in locomotion affected, 
—<=D 
In order to arrange Parnotoey, for the term “ healthy fune- 
tions,” the subject of physiology, it is only necessary to substitute 
the term ‘‘ diseased functions.” 
The classes of disease are, therefore, like those of anatomy and 
physiology, three ; namely, diseases of the mechanical or locomotive 
functions, diseases of the vital functions, and diseases of intellectual 
functions. 
The orders of the first class, as affecting the functions of ‘the 
bones, the ligaments, and the muscles, are three, viz. diseases of 
support, diseases of connexion, and diseases of locomotion. 
Those of the second class, as affecting the functions of the ab- 
sorbent, the circulating, and the secreting, vessels, are likewise three, 
viz. diseases of absorption, diseases of circulation, and diseases of 
secretion. 
hose of the third class, as affecting the functions of the organs 
of sense, of the brain, and of the nerves, are also three, viz. diseases 
of impression, diseases of judgment, and diseases of volition. 
The genera under each order consist of diminished, depraved, 
and increased, functions. 
—— 
Precisely in the same way would I class the articles of the Ma- 
veRiA Mepica; first, as operating upon the mechanical, vital, or 
intellectual, organs; and then as either increasing, rendering re- 
gular, or diminishing their action. 
— a 
It is not unusual to consider the body as being divided into the 
head, the trunk, and the extremities; but in consequence of ithe 
hitherto universal neglect of the natural arrangement of the organs 
and functions into mechanical, vital, and intellectual, the beauty 
and interest which may be attached to this division has equally 
escaped the notice of anatomists. 
It is a curious fact, and strongly confirmative of the preceding 
arrangements, that one of these parts—the extremities, consist 
almost entirely of mechanical organs, namely, of bones, ligaments; 
and muscles ; that another—the trunk, consists of all the greater 
vital organs, namely, absorbents, blood-vessels, and glands ; and that 
the third—the head, contains all the intellectual organs, namely, the 
organs of sense, cerebrum, and cerebellum. In perfect consistency 
with my assertion, “ that though the organs of digestion, respira- 
tion, and generation, were really compound, still they were chiefly 
vital, and properly belonged to that class,” it is not less remarkable 
that in this division of the body they are found to occupy that part— 
the trunk, in which the chief simple vital organs are contained, 
T 2 
