Chapter 14- The Autonomic Nervous System

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None of the listen responses is correct

Which of the following is a way in which the somatic and autonomic nervous systems are similar?

Resting and digesting

Which of these activities is most likely driven by parasympathetic innervation?


The sympathetic division innervates targets with nerves that all originate from the thoracolumbar region.

Most innervation from the vagus nerve

Which description is NOT consistent with the sympathetic division?


Unlike the sympathetic division, the parasympathetic division synapses with the adrenal medulla.

The axon can course back into the spinal cord to synapse with preganglionic neurons in a different spinal segment.

Once a preganglionic axon reaches a trunk ganglion, one of three things can happen to the axon. Which of the following is NOT one of these three things?


The major anatomic difference in autonomic reflex arcs is that there are two sensory afferents.

Nicotinic; acetylchline

Which receptor paring below is correct?

Muscarinic receptors

You are designing a drug to reduce heart rate. Which receptor would you target?


Which of the following is responsible for the overall integration of the autonomic nervous system (ANS)?

Cellular metabolism

Which of the following target organs/systems is affected by the sympathetic nervous system but is NOT affected by the parasympathetic nervous system?

Increased cognitive functioning

Which of the following is a characteristic of the parasympathetic division?

Adrenal medulla

Which target organ is NOT affected by the parasympathetic division of the autonomic nervous system (ANS)?

B would increase heart rate, while C would decrease it.

Which of the following best describes the effect on the heart of neurotransmitters released from the postganglionic neurons of B and C?

Parasympathetic stimulation causes vasodilation of blood vessels in the penis, leading to erection; sympathetic stimulation then causes ejaculation.

Which of the following best demonstrates an example of cooperation of the parasympathetic and sympathetic nervous systems?

Reflex of skeletal muscle

Which of the following is NOT an autonomic nervous system (ANS) function?

Different receptor types

Why would smooth muscle associated with lung bronchioles dilate while sooth muscle associated with arterial walls constricts when stimulated by norephinephrine neurotransmitter?


Nasal decongestants phenylephrine and pseudoephedrine act to shrink dilated blood vessels in the nasal passages to relieve congestion. They are called sympathomimetics because they act similar to sympathetic neruotransmitter norephinephrine. Which of the following would be an undesirable side effect associated with their use?

Inferior hypogastric plexus

Which plexus does NOT receive innervation from the vagus nerve?

Receptor in viscera
Visceral sensory neuron
Integration center
Motor neuron
Visceral effector

Drag the appropriate labels to their respective targets (Answers from top to bottom)

The same receptor that responds to norepinephrine also respond to epinephrine, increasing the action of both

The adrenal medulla secretes epinephrine during sympathetic stimulation. Which of the following statements describes why epinephrine would increase the sympathetic response?

A two-neuron motor pathway

What differentiates an autonomic reflex from a somatic reflex?

Terminus of a sympathetic postganglionic neuron

Which of the following releases the neurotransmitter norephinephrine?

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