Which of the following is true of dopamine receptors? A) ...

[captainjonesify]

Which of the following is true of dopamine receptors?
 
  A) Dopamine receptors are metabotropic.
  B) Dopamine receptors are ionotropic.
  C) D1 receptors are located on the presynaptic membrane.
  D) D2 receptors are only found on postsynaptic membranes.
  E) Cyclic AMP is increased by activation of D1 and D2 receptors.

Question 2

Damage to which dopaminergic (DA) system would be expected to produce muscle tremors, limb rigidity, and difficulty in movement control?
 
  A) nigrostriatal DA system
  B) hypothalamocortical DA system
  C) mesocortical DA system
  D) nesolimbic DA system
  E) corticospinal DA system

[Jody Vaughn]

Answer to Question 1

Answer: A

Answer to Question 2

Answer: A
Rationale: Damage to the nigrostriatal dopaminergic (DA) system would be expected to produce muscle tremors, limb rigidity, and difficulty in movement control.