Question detail
Why is the brain considered a crucial part of the central nervous system?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
The human nervous system
Question
- A. It regulates body temperature
- B. It controls all voluntary and involuntary actions
- C. It produces blood cells
- D. It digests food
Answer
The correct option is It controls all voluntary and involuntary actions. This answer is correct because it matches the approved learning objective to explain that the brain and spinal cord form the central nervous system in the subtopic Structure and function.
Explanation
The correct option is It controls all voluntary and involuntary actions. It controls all voluntary and involuntary actions is correct because it directly supports the approved learning objective to explain that the brain and spinal cord form the central nervous system. This belongs to the subtopic Structure and function within The human nervous system, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Structure and function.
Common mistake
Misunderstanding CNS Components
Students often confuse the roles of the brain and spinal cord, thinking they are separate systems rather than components of the central nervous system.
Emphasize that both the brain and spinal cord work together as the central nervous system, coordinating all nervous system activities.
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