The sympathetic branch of the nervous system arises from:
a. The upper portion of the spinal cord
b. The lower portion of the spinal cord
c. Both the upper and lower portions of the spinal cord
d. The middle of the spinal cord
D
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The "age of viability" is about 22 weeks.
Answer the following statement true (T) or false (F)
Protanopia results from
a. green cones being filled with red photopigment. b. a lack of cones. c. a lack of blue cones. d. red cones being filled with green photopigment. e. a lack of yellow cones.
A sympathomimetic drug is most likely going to
a. increase the organism's heart rate, respiration, and blood pressure b. decrease the organism's heart rate, respiration, and blood pressure c. increase the organism's ability to digest food d. facilitate the effects of GABA
Sometimes described as a "chemical brother" of GABA (gamma-aminobutyric acid), which amino acid neurotransmitter acts in an excitatory manner?
a. Serotonin b. Dopamine c. Acetylcholine d. Glutamate