A possible side effect of a drug used to open the airways of someone suffering from an asthma attack is (a) decreased activity of the digestive system, (b) diarrhea, (c) profuse urination, (d) increased blood pressure, (e) decreased heart rate.

Hypersecretion of antidiuretic hormone (ADH) can occur in all of the following situations EXCEPT __________.

As blood levels of __________ rise, the expulsive contractions of labor gain momentum and finally end in birth.

Which ANS fibers release acetylcholine? Which release norepinephrine?

Describe the events that occur during nerve impulse transmission at a typical cholinergic synapse.

Nicotine stimulates cholinergic receptors of the ANS. Based on this information, how would cigarette smoking affect the cardiovascular system?

Phil is stung on his cheek by a wasp. Because Phil is allergic to wasp venom, his throat begins to swell and his respiratory passages constrict. Would acetylcholine or epinephrine be more helpful in relieving his condition? Why?

While studying the activity of smooth muscle in blood vessels, Shelly discovers that, when applied to a muscle plasma membrane, a molecule chemically similar to a neurotransmitter triggers an increase in intracellular calcium ions. Which neurotransmitter is the molecule mimicking, and to which receptors is it binding?