Multiple Choice
Which of the following structures is directly associated with the dorsal column-medial lemniscal pathway, an ascending tract of the spinal cord?
12. The Central Nervous System
Introduction to the Central Nervous System
Multiple Choice
The white matter of the cerebrum is found:
A
on the surface of the cerebrum
B
within the ventricles
C
in the meninges
D
deep to the cerebral cortex
Verified step by step guidance1
Understand the structure of the cerebrum: The cerebrum is the largest part of the brain and is divided into two hemispheres. It consists of gray matter (the cerebral cortex) and white matter beneath it.
Differentiate between gray matter and white matter: Gray matter contains neuron cell bodies and is responsible for processing information. White matter consists of myelinated axons that facilitate communication between different parts of the brain and spinal cord.
Locate the cerebral cortex: The cerebral cortex is the outermost layer of the cerebrum, composed of gray matter. It is involved in higher brain functions such as sensory perception, motor control, and decision-making.
Identify the position of white matter: White matter is located deep to the cerebral cortex, meaning it lies beneath the gray matter of the cortex. It forms the inner layer of the cerebrum and connects various regions of the brain.
Clarify why other options are incorrect: White matter is not found on the surface of the cerebrum (this is where the gray matter is located), within the ventricles (these are fluid-filled spaces), or in the meninges (these are protective layers surrounding the brain and spinal cord).
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