When those studying the brain speak of brain circuits, they are ...

[naturalchemist]

When those studying the brain speak of brain circuits, they are referring to
 
  a. clusters of similar neurotransmitter-sensitive neurons.
  b. physical brain structures.
 c. endocrine pathways.
 d. brain stem activity.

Question 2

Balancing the emergency or alarm response to stress and returning the body to a state of normal arousal is a function of the
 
  a. sympathetic nervous system.
 b. parasympathetic nervous system.
  c. endocrine system.
 d. cortex.

[Shshxj]

Answer to Question 1

a

Answer to Question 2

b

[naturalchemist]

Thanks for the timely response, appreciate it

[apple]

Gracias!