"Vasovagal" syncope.
D002319:Cardiovascular System / Q000503:physiopathology*; D005239:Fear / Q000502:physiology*; D006801:Humans; D010146:Pain / Q000150:complications / Q000503:physiopathology*; D010275:Parasympathetic Nervous System / Q000503:physiopathology; D013564:Sympathetic Nervous System / Q000503:physiopathology; D013575:Syncope / Q000209:etiology*