Which of the following structures is a component of the central nervous system?Question 8Select one:a.Postsynaptic parasympathetic ganglionb.Rexed lamina IIc.Enteric nervous systemd.Paravertebral sympathetic chaine.Dorsal root ganglionClear my choice
Question
Which of the following structures is a component of the central nervous system?Question 8Select one:a.Postsynaptic parasympathetic ganglionb.Rexed lamina IIc.Enteric nervous systemd.Paravertebral sympathetic chaine.Dorsal root ganglionClear my choice
Solution
To determine which of the following structures is a component of the central nervous system, we need to analyze each option:
a. Postsynaptic parasympathetic ganglion: This structure is not a component of the central nervous system. It is a ganglion associated with the parasympathetic division of the autonomic nervous system.
b. Rexed lamina II: This structure is not a component of the central nervous system. It refers to a specific layer of cells in the spinal cord gray matter.
c. Enteric nervous system: This structure is not a component of the central nervous system. It is a division of the peripheral nervous system that controls the gastrointestinal tract.
d. Paravertebral sympathetic chain: This structure is not a component of the central nervous system. It is a chain of ganglia located alongside the vertebral column, associated with the sympathetic division of the autonomic nervous system.
e. Dorsal root ganglion: This structure is a component of the central nervous system. It is a cluster of sensory neuron cell bodies located in the dorsal root of the spinal cord.
Therefore, the correct answer is e. Dorsal root ganglion.
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