Autonomic Nervous System (ANS) Study Questions

Know the structural and functional differences between the sympathetic and parasympathetic nervous system.

• Origin of pre-ganglionic neurons.
• Location of ganglia
• Relative lengths of the pre- and post-ganglionic fibers
• Neurotransmitters used
• The role of the adrenal medulla.
• Functions of PSNS and SNS -- roles in control of heart rate, pupil diameter, intestinal motility, urination, etc.

Why is the action of the ANS slower than the somatic nervous system? (3 key factors).

What cranial nerves are part of the ANS?

What are the two types of cholinergic receptors and where are they found? Which drugs or toxins bind to these receptors?

What are the 5 types of adrenergic receptors and where are they found?

What is a "beta blocker?"

Why is it better to treat an asthma attack with a b2 agonist (mimic) and not epinephrine?

What part of the brain is the primary control center of the ANS?

Is the ANS absolutely involuntary? Why or why not?

Outline how heart rate is regulated by the ANS.

How does the adrenal gland differ from the rest of the sympathetic nervous system?

Why would taking sudafed cause "dry mouth?"

Why would taking sudafed cause hesitation in initiating urination (micturition), particularly in older people?

How does atropine dilate the pupils? Why was atropine called "belladonna"?

Why would atropine cause problems with near vision?

Why would the interaction between the sympathetic and parasympathetic nervous systems be called "cooperative" in regards to the sexual response (excitation and orgasm)?

What structures are served by SNS and not the PSNS?

What is dysautonomia?

Explain the effects of organophosphate poisoning.