
Match each numbered item with the most closely related lettered item.
decussation.........................................

To review:
Match the term decussation with the most closely related description given below:
Second order
Pain, temperature, crude touch, pressure
Voluntary control skeletal muscle
Subconscious control of distal limb musculature
Afferent
Information about “what,” “where,” and “when”
Unconscious proprioception
Crossover
Position change noise-related
Introduction:
In the ascending tracts of the spinal cord, the first-order axon and the second-order axon goes across to the opposite area of the brain-stem or the spinal cord, thereby forming a crossover. This is known as decussation.
Explanation of Solution
The first and second-order axon is arranged as a cross when it ascends across the spinal cord. This crossing over of the axons is known as decussation. This crossing over leads to the transmission of sensory messages from the left side of the body to the right side of the brain and vice-versa.
Therefore, it can be concluded that the term decussation can be correctly matched with option (h) crossover.
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Chapter 15 Solutions
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