Edible substances evoke the secretion of thick, concentrated saliva. Why? The answer, obviously, is that this enables the mass of food to pass smoothly through the tube leading from the mouth into the stomach.

Learn the ABC of science before you try to ascend to its summit.

Learn, compare, collect the facts!

Men are apt to be much more influenced by words than by the actual facts of the surrounding reality

When the dog is repeatedly teased with the sight of objects inducing salivary secretion from a distance, the reaction of the salivary glands grows weaker and weaker and finally drops to zero.

Appetite, craving for food, is a constant and powerful stimulator of the gastric glands.

Edible substances evoke the secretion of thick, concentrated saliva. Why? The answer, obviously, is that this enables the mass of food to pass smoothly through the tube leading from the mouth into the stomach.