Reflex Vulvoanal

In 1877, Gustav Voigt proposed that with reflexes from the periphery to the center, the flow of sensations moves along the nerve fibers along the path of least resistance. Developing this idea in 1902, Liebeau explained the existence of conditioned reflexes in the frog: irritation of the salivary center runs along the nerve, which normally takes the path of least resistance - from the ganglion through the nerve. This caused a chain reaction of nerve impulses, which was then realized in the secretion of glands involved in stimulating unconditional salivation.

In 1899, the French physiologist Camille Vogt (Leiboisier, 1536) tried to explain the ability of frogs for “nervous digestion.” He proved that his frog distinguished many flavoring substances and that saliva contained exocrine glands, according to Carel, capable of concentrating flavoring substances. Davy and Menton show that the amplification of the sense of taste occurs by the nerve and that the taste organ of the frog represents the nervous system as a whole, which includes the sense organs. But due to the excitement of the food system, the substance passing through the stomach still does not cause contractile activity. Vogt explains this phenomenon by the fact that the substance also reaches the nerves that connect to another part of the body, and therefore cannot cause them