2521. The analogue of the nose is wholly stunted, and is only left persistent as a trachea or air-tube in the urethra.
2522. In other respects the cavity of the sexual parts is a trunk-cavity "per se," like the thoracic and abdominal; the pelvic cavity contains the viscera of a whole animal.
II.-PHYSIOLOGY.
2523. Physiology is the doctrine or science which treats of the functions of the animal. Like the organology was, so also must the science of the functions be developed. There will be functions of the whole animal, and of the tissues, systems and organs.
A. FUNCTIONS OF THE ANIMAL IN GENERAL.
2524. The first act of the animal is an assimilation to the universe, whereby it also receives or takes up into itself the primary function of the universe. This is the perception of the circumscription and totality in itself, its self-manifestation, the feeling of self. The first action of the animal mass is that of self-sensation. Now, through the self-sensation, self-substantiality has been granted.
2525. The animal is consequently a Whole in Singulars only through the feeling of self.
2526. As the universe is only an analysis of the self-consciousness of God; so also can the development of the animal and the formation of its organs, be none other than an analysis of the self-sensation. All other functions (just as all masses are only a metamorphosed nervous mass) are but differently polarized self-sensations, or these as it were dispersed.
2527. The self-sensation of an individual body is not, however, inclosed within itself, like the primary relation of the universe; because it is not the universe, but only a fraction of it, which has sprouted forth like a bud from the great planetary body. The self-sensation is not therefore a simple feeling of self, but a feeling also of something foreign or extraneous, and thus the animal self-sensation becomes, in reference to Nature, an act of discrimination or discernment.