Both sympathetic and parasympathetic nervous systems share which of the following characteristics? A) Only innervate smooth muscle B) Regulate the internal environment consciously... Both sympathetic and parasympathetic nervous systems share which of the following characteristics? A) Only innervate smooth muscle B) Regulate the internal environment consciously C) Use two neurons that synapse in a peripheral ganglion D) Primarily use norepinephrine for neurotransmission
Understand the Problem
The question is asking to identify a characteristic that is shared by both the sympathetic and parasympathetic nervous systems. This involves understanding the functions and structures of these two systems within the autonomic nervous system.
Answer
Use two neurons that synapse in a peripheral ganglion.
The final answer is C) Use two neurons that synapse in a peripheral ganglion.
Answer for screen readers
The final answer is C) Use two neurons that synapse in a peripheral ganglion.
More Information
Both sympathetic and parasympathetic pathways involve two neurons in series: a preganglionic neuron and a postganglionic neuron. The preganglionic neuron synapses with the postganglionic neuron in a peripheral ganglion.
Tips
A common mistake is to confuse the location of norepinephrine use, which is primarily by the sympathetic division, not both.
Sources
- Anatomy, Autonomic Nervous System - StatPearls - NCBI Bookshelf - ncbi.nlm.nih.gov
- Divisions of the Autonomic Nervous System - Lumen Learning - courses.lumenlearning.com
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