Physiology Parasympathetic stimulation of the hea accompanied by a withdrawal of sympathetic tone to most of the blood vessels of the body is characteristic of A The fight-or-flight response B Vasovagal syncope C Exercise D The diving response 💡 Explanation Parasympathetic stimulation of the hea accompanied by a withdrawal of sympathetic tone to most of the blood vessels of the body is characteristic of ✓ Correct Answer: B. Vasovagal syncope