DIE NERVENZELLEN UND GANGLIEN DES N. VAGUS

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Abstract
Right and left vagus nerves and their branches of the cat, dog, and man were fixed in formalin, imbedded in celloidin-paraffin and cut in serial sections. The sections were stained with haematoxylin. Exact records were made of the nerve cells of the vagus. In the main stem and in the branches of the vagus on one side there were 200-300 nerve cells in the dog, 400-600 in the cat and about 1700 in man. The nerve cells are either scattered or they form groups and microscopic ganglia. Most cells are situated in the nerves which supply the respiratory apparatus (superior laryngeal nerve, recurrent nerve and tracheal, bronchial and pulmonary branches) and in that part of the vagus stem from which these rami originate. There are none or only a few cells in the cardiac and enteric branches. The nerve cells of the vagus are related to the respiratory apparatus and they represent the extramural cells of the respiratory apparatus. Some of the isolated cells in the vagus nerve proper may belong to the sensory system.

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