Chapter 14 Quiz: The Autonomic Nervous System

Which of the following is a way in which the somatic and autonomic nervous systems are similar? Both systems have ganglia in their motor pathways. Both systems share common effectors. Both systems share common efferent pathways. Both systems elicit the same target organ responses to their neurotransmitters. None of the listed responses is correct.

Which of these activities is most likely driven by parasympathetic innervation? sweating and dilating pupils fight-or-flight responses resting and digesting vigorous physical activity

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

Which plexus does NOT receive innervation from the vagus nerve? pulmonary plexuses inferior hypogastric plexus abdominal aortic plexus cardiac plexuses

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 axon can synapse with a ganglionic neuron in the same trunk ganglion. The axon can pass through the trunk ganglion and emerge from the sympathetic trunk without synapsing. The axon can course back into the spinal cord to synapse with preganglionic neurons in a different spinal segment. The axon can ascend or descend the sympathetic trunk to synapse in another trunk ganglion.

Which of the following best demonstrates an example of cooperation of the parasympathetic and sympathetic nervous systems? Sympathetic stimulation causes vasodilation of blood vessels in the clitoris, leading to erection; parasympathetic stimulation then causes reflex contractions of the vagina. Parasympathetic stimulation causes copious sweating; sympathetic stimulation causes epidermal pores to dilate. Parasympathetic stimulation causes vasodilation of blood vessels in the penis, leading to erection; sympathetic stimulation then causes ejaculation. Sympathetic stimulation causes vasodilation of blood vessels in the penis, leading to erection; parasympathetic stimulation then causes ejaculation.

Which of the following is responsible for the overall integration of the autonomic nervous system (ANS)? peripheral ganglia cerebral cortex brain stem hypothalamus

Which of the following target organs/systems is affected by the sympathetic nervous system but is NOT affected by the parasympathetic nervous system? lungs gallbladder cellular metabolism salivary glands

Which of the following is characteristic of the parasympathetic division? increased heart rate inhibited digestion and elimination dilated airways increased cognitive functioning