A dorsal view of the course of both the vagosympathetic trunks, vagus nerves, and recurrent layrngeal nerves in the neck of the horse.
The Hyoid is a very delicate bone structure in the horse's head. It can easily be offset and that will cause the horse pain and discomfort, even a headache. It can also be reset to its natural position with Photonic Therapy. A good thing to do before having the teeth floated too! http://www.lechevalaunaturel.blogspot.ca/p/blog-page_14.html