The digestive canal represents a tube passing through the entire organism and communicating with the external world, i.e. as it were the external surface of the body, but turned inwards and thus hidden in the organism.

Thanks to our present surgical methods in physiology we can demonstrate at any time almost all phenomena of digestion without the loss of even a single drop of…

The first stage through which the food substances introduced from without must pass, is the digestive canal; the first vital action on these substances, or to …

So the stimulation effected by the act of eating reaches the gastric glands by means of the nerve fibres that are contained in the vagus nerves.

It has long been known for sure that the sight of tasty food makes a hungry man's mouth water; also lack of appetite has always been regarded as an undesirable…

The physiologist who succeeds in penetrating deeper and deeper into the digestive canal becomes convinced that it consists of a number of chemical laboratories…

A woman's pleasure is not dependent upon the presence of a penis in the vagina; neither is a man's.