If you are a clinician working with patients with dysphagia, the Modified Barium Swallow Impairment Profile is an very thorough course. The MBSImP targets modified barium swallow studies, however the anatomy learned through the course is amazing.
After taking the course, I wrote a review, which you can find here.
The MBSImP is taught by Dr. Bonnie Martin-Harris and available through Northern Speech Services.
The course seems a little costly, but at $600 for 2.1 CEUs it is a great value!