Deck 25: General Aspects of Neuropharmacology

Question 1

What effect does the parasympathetic system have on the heart?

A) Increases heart rate
B) Decreases heart rate
C) Causes vasodilation
D) Increases the force of the heart

Answer 1

Decreases heart rate

Question 2

The parasympathetic division is activated in an emergency or stressful situation.

Answer 2

False

Question 3

Which of the following best characterizes the anatomic and physiological difference between the sympathetic and parasympathetic nervous system?

A) The sympathetic nervous system has short postganglionic fibres, while the parasympathetic nervous system has long postganglionic fibres.
B) The sympathetic nervous system has ganglia located within a few cm of the CNS, while the parasympathetic nervous system ganglia is located close to the visceral organs served.
C) The sympathetic nervous system originates from cranial nerves, while the parasympathetic nervous system originates from the lateral horn of grey matter of the spinal cord segments.
D) The sympathetic nervous system has minimal degrees of branching of preganglionic fibres, while the parasympathetic nervous system has extensive degrees of branching of preganglionic fibres.

Answer 3

The sympathetic nervous system has ganglia located within a few cm of the CNS, while the parasympathetic nervous system ganglia is located close to the visceral organs served.

Question 4

Which of the following neurotransmitters is involved in autonomic nervous system (ANS)function?

A) Norepinephrine
B) Vasopressin
C) Acetylcholine
D) Dobutamine

Question 5

Sympathetic stimulation would result in which one of the following sets of responses?

A) Increased gastric juice secretion and increased heart rate
B) Sweating, urinary retention, salivation and pupil dilation
C) Increased gastrointestinal motility, pupil constriction, defecation and erection of genitalia
D) Slowed heart rate, increased blood pressure, pupil constriction and pallor