ranjan

Vagus is the latin word for wandering.Vagus nerve is the main channel of communication between GI tract and the brain which sends signals in both diractions. It takes a long wandering course through the body. Vagus nerves are the longest cranial nerve running from brain to large intestine. Left side nerve runs down left side and right one runs down right side of the body. They exit from medulla oblongata in lower brain stem that connects to spinal cord.  Medulla oblongata being a connection between the brain stem and spinal cord controls breathing, heart rate and blood pressure carrying multiple functional centers like cardiovascular - respiratory regulation system descending motor tracts, and origin of cranial nerves ix, x, xi and xii.  If this is damaged, can lead to respiratory failure  paralysis or loss of sensation.           Vagus nerve carry signals between the brain, heart and immune system. They are key part of parasympathetic nervous system. Vagus nerve stimulation can treat