What are the two types of receptors found in the parasympathetic system?

Mrs. Jones has had a progressive decline in her mental capabilities in the last five or six years. At first her family attributed her occasional memory lapses, confusion, and agitation to grief over her husband's death six years earlier. When examined, Mrs. Jones was aware of her cognitive problems and was shown to have an IQ score approximately 30 points less than would be predicted by her work history. A CT scan showed diffuse cerebral atrophy. The physician prescribed an acetylcholinesterase inhibitor and Mrs. Jones showed slight improvement. What is Mrs. Jones's problem? Why did the acetylcholinesterase inhibitor help?

Which of the following is released by all somatic motor neurons at their synapses and always has an excitatory effect on skeletal muscle?

Which of the following neurotransmitters would be the only secretion of the sympathetic preganglionic fibers of the autonomic nervous system?

Norepinephrine and epinephrine can have either excitatory or inhibitory effects on target organs.

__________ and __________ are the major neurotransmitters released by autonomic nervous system neurons.