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Solid food given to the child before it has cut its teeth, enters the stomach unreduced to pulp by the grinders, and unmixed with the saliva, which should help its solution, and which the undeveloped salivary glands do not yet furnish.
Every salivary gland I owned was standing on tiptoe screaming for help; every little mucous membrane had a sorrow all its own. Each separate fiber of my innermost being cried out for greases and for sugars and for the wonted starchy compounds for to stay it and for to comfort it.
As soon as the wound is made the insect pours out through the tube of the hypopharynx some of the secretion from the salivary glands and then begins to suck up the blood through the hollow labrum into the pharynx and on into the stomach. The mouth-parts of the male differ in some important respects from those of the female.
Many other receptacles of peculiar fluids disgorge their contents, when the ends of their ducts are stimulated; as the gall bladder, when the contents of the duodenum stimulate the extremity of the common bile duct: and the salivary glands, when the termination of their ducts in the mouth are excited by the stimulus of the food we masticate.
Whilst those, which arise from the internal surfaces of the urinary bladder, gall-bladder, salivary ducts, or other receptacles of secreted fluids, may take their names from those fluids; the thinner parts of which it is their office to absorb: as urinary, bilious, or salivary absorbents.
There are other objects adapted to stimulate the nerves, which terminate in variety of membranes, and those especially which form the terminations of canals; thus the preparations of mercury particularly affect the salivary glands, ipecacuanha the stomach, aloe the sphincter of the anus, cantharides that of the bladder, and lastly every gland of the body appears to be indued with a kind of taste, by which it selects or forms each its peculiar fluid from the blood; and by which it is irritated into activity.
Bile is poured in close to the hinder end of it, but you must not look for the liver; it has disappeared, or rather its form is entirely changed. You remember what the pancreas had become in fishes; i.e. a row of tubes giving out a salivary fluid. Such is exactly the appearance of the liver in the cockchafer.
In order fully to gratify the taste in eating dry, solid food, it is necessary that the food be first reduced to a liquid state, or, at least, that it be thoroughly moistened. Nature has made full provision for this in furnishing the mouth with salivary glands, whose secretions are most abundant when engaged in masticating dry, hard substances.
*Reflex Action in Digestion.*—The flowing of the saliva, when food is present in the mouth, is an example of reflex action. In this case, however, the organ excited to activity is a gland instead of a muscle. The food starts the impulses, and these, acting through the bulb, reach and stimulate the salivary glands.
She was wiping slobber on to her skirt from an envelope whose strong perfume had excited the dog's salivary glands. But it was true that she did not see. "May I call you Theresa?" "Why?" "It would encourage confidences. There isn't another woman in Sialpore whom I could tell what I'm going to say to you. The others would repeat it to their husbands, or " "I tell mine everything. Every word!"
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