afferent 2200: efferent 200: adventitial, non-vagal fibers 600 fibers
||Rat Rattus norvegicus
||Berthoud HR, Neuhuber WL. Functional and chemical anatomy of the afferent vagal system. Auton Neurosci. 2000 Dec 20 85(1-3):1-17 DOI: 10.1016/S1566-0702(00)00215-0 p.3 right column 2nd paragraphPubMed ID11189015
||Prechtl JC, Powley TL. The fiber composition of the abdominal vagus of the rat. Anat Embryol (Berl). 1990 181(2):101-15 DOI: 10.1007/bf00198950PubMed ID2327594
||P.3 right column 2nd paragraph: "The common hepatic branch of the abdominal vagus has received the most attention with regard to immune-brain communication and thermoregulation. The common hepatic branch contains a total of about 3000 fibers: 2200 of which are afferent, 200 efferent, and 600 are adventitial, non-vagal fibers (primary source)."