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Updated: October 1, 2025
There is no reason why things should stop at partial artificial division thus afforded; there is every reason, on the contrary, to believe my statement that some cunning exterior mechanism will presently masticate and insalivate his dinner, relieve his diminishing salivary glands and teeth, and at last altogether abolish them." Then what is not needed disappears.
Belonging to the system, or body, as a whole. The contraction of the heart, by which the blood is expelled from that organ. Relating to the sense of touch. Tartar. A hard crust which forms on the teeth, and is composed of salivary mucus, animal matter, and a compound of lime. Pertaining to the temples; so called because the hair begins to turn white with age in that portion of the scalp.
Other digestive organs which are tributary to this canal, and discharge their secretions into it, are the salivary glands, the liver, and the pancreas. The digestive process is subdivided into three steps, which take place in the mouth, in the stomach, and in the intestines. The Mouth. The mouth is the cavity formed by the lips, the cheeks, the palate, and the tongue.
The swelling produced after the bite is the result of the action of the saliva the mosquito injected into the wound. The opening through the tongue is so small that blood would readily clot inside the tube and prevent its further usefulness, did not the mosquito inject the secretion of its salivary glands into the wound. This acts upon the blood in such a way as to prevent its coagulation.
The sucking of the thumb causes the salivary glands to pour out their contents, and thus not only to moisten the dry mouth, but assist the digestion; the pressure of the thumb eases, while the teeth are "breeding," the pain and irritation of the gums, and helps, when the teeth are sufficiently advanced, to bring them through the gums.
To preserve the transparency of the cornea, and also to lubricate the eyelids and aid in the removal of foreign bodies, a secretion, called tears, is constantly supplied. The lachrymal, or tear, glands are situated at the upper and outer margins of the orbits. They have the general structure of the salivary glands and discharge their liquid by small ducts beneath the upper lids.
Tobacco seems to be a direct stimulant to the salivary apparatus. Habit blunts this effect only to a limited extent. The old smoker has usually some increase of this secretion, although he does not expectorate. But if he does not waste this product, he swallows it, it is said, in a state unfit to promote digestion. The saliva owes its peculiarity to one of its components, called ptyalin.
As to the pancreas it is wanting here, as in the fish with salivary glands; but in its place in many insects other tubes, acting also as glands, pour saliva into the pharynx; i. e., the cavity at the back of the throat. As you see, therefore, everything is found complete in this tube of a few inches long; and you can also distinguish there a small and a large intestine.
In other cases this malformation is unilateral and the fissure ascends, in which instance the fissure may be accompanied by a fistula of the duct of Stensen. Sometimes there is associated with these anomalies curious terminations of the salivary ducts, either through the cheek by means of a fistula or on the anterior part of the neck. Microstoma.
The mucous membrane Phlegm The secreting organs The liver, kidney, pancreas, salivary and lachrymal glands Sympathetic connection of all the bodily organs Intimate connection of the skin with all the other organs Proper mode of treating the skin Experiment showing happy effects of good treatment.
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