Which of the following is promoted by parasympathetic activity? A: Airway constriction B: Ejaculation 射精 C: Pupillary dilation D: Vasoconstrictor response to hemorrhage E: Secretion of sweat

Which of the following nerves have no nervous activity? () A: Cardiac vagus nerve B: Cardiac sympathetic nerve C: Sympathetic vasoconstrictor D: Sympathetic vasodilator E: Parasympathetic nerve

Both phentolamine and prazosin A: are competitive antagonist at α1 adrenergic receptors B: have potent direct vasoconstrictor actions on vascular smooth muscle C: enhance gastric acid secretion through a histamine -like effect D: cause hypotension and bradycardia E: are used chronically for the treatment of primary hypertension