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chapter 12 check your understanding question 4
1 part --- of 1 point
which type of white matter fiber tract connects the cerebrum to lower centers, like the spinal cord?
○ commissures
○ projection fibers
○ corpus callosum
○ association fibers
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Explanation:

To solve this, we recall the functions of white matter fiber tracts:

• Commissures: Connect cerebral hemispheres (e.g., corpus callosum is a commissure).
• Projection fibers: Connect the cerebrum to lower centers (like spinal cord) or vice versa, carrying motor/sensory signals.
• Corpus callosum: A specific commissure (connects left/right hemispheres), not a general tract type for cerebrum - spinal cord.
• Association fibers: Connect regions within the same cerebral hemisphere.

So projection fibers match the description.

Answer:

B. projection fibers