Cranial root of accessory nerves
|Nerve: Cranial root of accessory nerves|
|Latin||radix cranialis nervi accessorii, pars vagalis nervi accessorii|
|Gray's||subject #206 913|
The cranial part of accessory nerve (or root) is the smaller of the two portions of the accessory nerve.
It runs lateralward to the jugular foramen, where it interchanges fibers with the spinal portion or becomes united to it for a short distance; here it is also connected by one or two filaments with the jugular ganglion of the vagus.
It then passes through the jugular foramen, separates from the spinal portion and is continued over the surface of the ganglion nodosum of the vagus, to the surface of which it is adherent, and is distributed principally to the pharyngeal and superior laryngeal branches of the vagus.
Some few filaments from it are continued into the trunk of the vagus below the ganglion, to be distributed with the recurrent nerve and probably also with the cardiac nerves.
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