Question 11 ptsWhich of the following statements is CORRECT regarding the structure of the nervous system?Group of answer choicesthe spinal cord is part of the peripheral nervous systemthe central nervous system can be anatomically subdivided into somatic, sensory and autonomic componentsprimary sensory neurons have cell bodies and most of their axons in the central nervous systemall cranial nerves project solely within the central nervous systemall motor neurons have axons that project at least partly in the peripheral nervous system
Question
Question 11 ptsWhich of the following statements is CORRECT regarding the structure of the nervous system?Group of answer choicesthe spinal cord is part of the peripheral nervous systemthe central nervous system can be anatomically subdivided into somatic, sensory and autonomic componentsprimary sensory neurons have cell bodies and most of their axons in the central nervous systemall cranial nerves project solely within the central nervous systemall motor neurons have axons that project at least partly in the peripheral nervous system
Solution
The correct statement regarding the structure of the nervous system is: "all motor neurons have axons that project at least partly in the peripheral nervous system."
Here's why:
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The spinal cord is not part of the peripheral nervous system. It is part of the central nervous system, which also includes the brain.
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The central nervous system cannot be anatomically subdivided into somatic, sensory, and autonomic components. These divisions are part of the peripheral nervous system.
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Primary sensory neurons do not have cell bodies and most of their axons in the central nervous system. They are located in the peripheral nervous system.
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Not all cranial nerves project solely within the central nervous system. Some cranial nerves, such as the optic nerve, project to the peripheral nervous system.
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All motor neurons do have axons that project at least partly in the peripheral nervous system. This is because motor neurons carry signals from the central nervous system to the muscles and glands in the body, which are part of the peripheral nervous system.
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