2569. The functions do not concern the whole body, but only its principal parts.
a. VEGETABLE FUNCTIONS.
2570. The vegetative functions are matter-changing processes, which, consequently, correspond directly to the chemical processes, or are rather of one kind with these, but altered by organic elemental bodies.
1. Functions of the Intestinal System.
2571. The general function of the integument consists in the secretion of juices, of which there are principally two kinds, the general and special.
2572. The general intestinal juice is mucus; it acts by rarefying.
2573. The gastric juice is of an aqueous, mucous, and acid nature. It acts as an acid and is endowed with chemically solvent properties.
2574. The bile is of a basic, inflammable, alkaline nature. It acts also chemically by analysing and precipitating.
2575. The saliva is the gastric juice of the head. It is a juice secreted under the influence of the sensibility, and is on that account indifferencing, and nullifying in its effects; it is the highest poison.
2576. As the indifferent saliva precedes the gastric juice, so does the indifferent pancreatic fluid the bile.