What happens in vagus

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18 Oct 2026 0 comments

The parasympathetic nervous system is phylogenetically ancient. In humans, the vagus nerve is the brain's only pathway for bidirectional parasympathetic signaling with the thorax, abdomen, and upper pelvis. Unsurprisingly, the vagus nerve has played a significant role in scientific discovery and therapeutic applications, attracting the attention of Galen, Darwin, and Pavlov, among others. For example, Otto Loewi used the vagus nerve to gather data that confirmed Santiago Ramón y Cajal's Neuron...