Multiple Choice
Which of the following statements is true regarding parasympathetic tone?
A) It holds the resting heart rate below its intrinsic rate.
B) It accelerates the resting heart rate above its intrinsic rate.
C) It might increase or decrease heart rate depending on the situation.
D) It affects heart rate only after myocardial infarction.
E) It does not affect heart rate.
Correct Answer:
Verified
Correct Answer:
Verified
Q22: Acetylcholine (ACh)always has an excitatory effect.
Q23: The parasympathetic division arises from the _
Q24: The solar plexus is used as a
Q25: Preganglionic fibers of the autonomic efferent pathway
Q26: _ is an example of the cooperative
Q28: Sympathetic effects tend to last _ than
Q29: The autonomic effect on a target cell
Q30: Which of the following is not a
Q31: All sympathetic postganglionic adrenergic fibers secrete adrenaline.
Q32: Most preganglionic fibers in the sympathetic nervous