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10661 Anatomy

A 30-year-old female patient has complained of weakness and fatigability over the past 6 months. She has a 3-month acute history of severe hypertension that has not responded to antihypertensive medications. Fasting serum glucose concentration is 140 mg/dl. A CT scan of the abdomen shows a 6-cm mass in the adrenal gland affecting the secretory cells of the adrenal medulla. Which of the following structures is most likely releasing products into the bloodstream to produce the hypertension and other signs?

APreganglionic sympathetic axons in thoracic splanchnic nerves
BCells of neural crest origin that migrated to the adrenal medulla
CPreganglionic parasympathetic branches of the posterior vagal trunk
DPostganglionic parasympathetic branches of the left or right vagus nerves
Anatomy
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