Arterial blood pressure may be increased by() A: decreased sympathetic tone B: Venodilatation C: decreased parasympathetic tone D: decreased vasopressin hormone release E: adrenoceptor blocking drugs

肾上腺素受体(adrenoceptor),包括α、β型受体。β(β1、β2)受体:β2受体主要分布于支气管、血管平滑肌细胞上;β1受体主要分布于( )组织中。 A: 血管 B: 心脏 C: 肾脏 D: 膀胱

Which one of the sentence is INCORRECT for Prazosin? A: It is a selective α1 adrenoceptor blocker. B: It blocks presynaptic α2 adrenoceptors to increase release of noradrenaline. C: It has first dose of effect, showing postural hypotension. D: It dilates resistance and capacitance vessels. E: It can decrease the blood cholesterol concentrations.