Question

In the treatment of hypertension, prazosin _______ whilepropranolol _______.

Select one:

a. blocks α1-receptors and causes dilation of blood vessels;blocks β-receptors in the heart and decreases the contractileforce

b. blocks α1-receptors and causes constriction of blood vessels;activates β-receptors in the heart and increases the contractileforce

c. activates α1-receptors and causes dilation of blood vessels;activates β-receptors in the heart and decreases the contractileforce.

d. None of the above

Dopaminergic cell bodies in the VTA send projections to thenucleus accumbens and the amygdala via the _______ dopaminepathway.

Select one:

a. nigrostriatal

b. mesocortical

c. mesolimbic

d. tuberohypophyseal

Which of the following is NOT true regarding eating behaviorcaused by injection of NE into the PVN of the hypothalamus?

Select one:

a. The response is blocked by α2-receptor antagonists

b. The response is mimicked by α2-receptor agonists

c. The response is mimicked by clonidine

d. The response is blocked by β-receptor antagonists