High levels of cortisol may be directly toxic to neurons due to ...

[ghost!]

High levels of cortisol may be directly toxic to neurons due to cortisol's ability to
 
  a. promote sleepiness.
 b. prevent sleepiness.
 c. increase the amount of calcium entering neurons.
 d. prevent calcium from entering neurons.

Question 2

The result of activity in the HPA axis is
 
  a. activation of the amygdala.
 b. reductions in serotonergic activity.
 c. increases in the release of testosterone.
 d. increases in the release of cortisol.

[xoxo123]

Answer to Question 1

c

Answer to Question 2

d