Match each numbered item with the most closely related lettered item.
preganglionic......................................
To review:
Match the term preganglionic with the most closely related description given below:
All preganglionic fibers
Preganglionic fibers to collateral ganglia
First neuron
Collateral ganglia
Adrenal medulla
Sympathetic activation
Sympathetic division
Terminal ganglia
Sympathetic chain ganglia
Long postganglionic fiber
Introduction:
The preganglionic neurons in the sacral segments of the spinal cord and in the brainstem and the ganglionic neurons in the peripheral ganglia present inside or immediately next to the target organs are the components of parasympathetic division.
Explanation of Solution
The preganglionic neurons are the first neurons. They have their cell bodies in the central nervous system and axons project to the ganglia in the peripheral nervous system. The preganglionic neurons form the synapses with the ganglionic neurons in the sympathetic trunk and release ACh (acetylcholine), which always have the excitatory effects.
Therefore, it can be concluded that the term preganglionic can be correctly matched with option (c) first neuron.
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Chapter 17 Solutions
Human Anatomy (8th Edition) - Standalone book
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