What mechanism prevents or slows some chemicals from entering the brain, while allowing others to enter?
A. A threshold
B. A blood-brain barrier
C. An endoplasmic wall
D. A differential-drug inhibitor
Answer: B
You might also like to view...
Which of the following is a true dichotomous variable?
a. football players' numbers b. weight c. time d. gender
People in most cultures believe that
a. the death of a person is the end of their existence. b. there is a spiritual component of a person's being that continues after the body decomposes or burns. c. the spirit remains in the location where death occurred. d. a person's spirit returns in the birth of a new child in that culture.
In situations that can be represented appropriately by a 2 x 2 table, people tend to
see the information in one cell as more informative than information in the other cells. That one cell is cell (a) A (b) B (c) C (d) D
Signs of cortical arousal in the EEG are reduced by __________.
A. dopamine agonists B. GABA agonists C. serotonergic drugs D. acetylcholine antagonists