Answer to Schweddy’s Balls
Correct answer is E. Sweating is a result of excessive sympathetic innervation. A procedure developed to alleviate hyperhidrosis is known as endoscopic thoracic sympathectomy (ETS). ETS is very effective at stopping sweating of the hands in over 95% of cases; it is slightly less effective at stopping sweating in the armpits (about 85%). Over time sweating will recur in a few people as reported in a study following patients over a 15 year period.
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Answer to this question is based on material presented in lectures 13 of the Thorax Lecture Series.
= Right vagus n.
= Right phrenic n.
= Left phrenic n.
= Left vagus n.
= Right sympathetic trunk