Prazosin can selectively block ( ).
A: D1 receptors
B: α1 adrenoceptors
C: α2 adrenoceptors
D: β1 adrenoceptors
E: β2 adrenoceptors
A: D1 receptors
B: α1 adrenoceptors
C: α2 adrenoceptors
D: β1 adrenoceptors
E: β2 adrenoceptors
举一反三
- 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.
- Phentolamine<br/>may increase heart rate by targeting____. A: presynapticα2-adrenoceptors B: postsynapticα2-adrenoceptors C: cardiacβ-adrenoceptors D: cardiacα1-adrenoceptors E: vascularα1-adrenoceptors
- 网页中间的主题部分采用() A: A1:2 B: B2:1 C: C1:2或2:1 D: D1:2;1
- 在卵细胞形成过程中,卵原细胞、初级卵母细胞、次级卵母细胞和极体细胞比例() A: A1:1:2:4 B: B1:1:1:2 C: C1:1:2:2 D: D1:1:1:3
- 设行列式D1=,D2=,若D1=D2,则λ的取值为:() A: 2,-1 B: 0,2 C: 1,-1 D: 0,1