10 Questions
Where are the cell bodies of the preganglionic neurons located?
In the lateral horns
What neurotransmitter is released by preganglionic fibers to stimulate ganglionic neurons?
Acetylcholine (ACh)
Why is the sympathetic division also called the thoracolumbar division?
Due to the location of its preganglionic neurons between segments T1 and L2 of the spinal cord
Where are the ganglia located in the sympathetic division?
Near the spinal cord
What is the function of the sympathetic division of the ANS?
Mobilizing the body’s energy and resources to respond to stressful situations
What is the function of the sympathetic preganglionic fibers in the sympathetic division?
To become part of the spinal anterior roots
Where do the sympathetic preganglionic fibers give rise to a myelinated white ramus communicans?
At each anterior root after passing through the intervertebral foramen
What is the function of the myelinated white ramus communicans in the sympathetic division?
To carry myelinated preganglionic fibers into a nearby sympathetic chain ganglion
What is the characteristic appearance of the sympathetic chain ganglia?
Like a string of pearls
How many ganglionic neurons does one preganglionic fiber synapse on in the sympathetic division?
Two dozen or more
Test your knowledge of the sympathetic division of the autonomic nervous system with this quiz. Explore the organization and function of the thoracolumbar division and its preganglionic neurons.
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