What is believed to be the likely cause of plaques?
a. a relative deficit of thiamine
b. increased pressure from cerebrospinal fluid
c. amyloid deposits in the brain
d. a relative deficit of acetylcholine
Nitric oxide’s value is that it:
a. increases blood flow to certain areas of the brain.
b. restricts blood flow to certain areas of the brain.
c. increases growth of microglia.
d. decreases growth of microglia.
Information reaches the pons within 3 to 8 ms after a ____, and the full startle reflex
occurs in less than two-tenths of a second.
a. loud noise.
b. puff of air directed at your eye.
c. bright light.
d. pinch on the foot.