Multiple Choice
Which of these statements about the afferent division of the nervous system is true?
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12. The Central Nervous System
Introduction to the Central Nervous System
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Where are the pyramids of the brainstem located?
A
In the thalamus
B
In the midbrain
C
In the medulla oblongata
D
In the pons
Verified step by step guidance1
Understand the structure of the brainstem, which consists of the midbrain, pons, and medulla oblongata.
Recognize that the pyramids are structures located on the ventral surface of the medulla oblongata.
The pyramids contain motor fibers that are part of the corticospinal tract, which is involved in voluntary motor control.
Differentiate the medulla oblongata from other parts of the brainstem by its role in autonomic functions and its location at the lower part of the brainstem.
Conclude that the pyramids are specifically located in the medulla oblongata, not in the thalamus, midbrain, or pons.
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