Acetylcholine is the only neurotransmitter released by ____.
a. the sympathetic nervous system's postganglionic synapses
b. the parasympathetic nervous system's postganglionic axons
c. intrinsic neurons in the spinal cord
d. intrinsic neurons of the hippocampus
Question 2
The anterior commissure, on the average, is ____.
a. smaller in heterosexual women than heterosexual men
b. larger in heterosexual women than heterosexual men
c. smaller in homosexual men than heterosexual men
d. larger in heterosexual men than homosexual men