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Which pathway is being described?

Mary is getting a massage and enjoying the pressure from the massage.

A. Ascending pathway
B. Descending pathway
C. Somatosensory pathway
D. Vestibulospinal pathway

Answer :

Final answer:

The pathway in question as Mary receives a massage is the ascending pathway, specifically the somatosensory pathway, which carries tactile and proprioceptive sensations from the peripheral receptors to the central nervous system for processing.

Explanation:

The pathway being described when Mary is getting a massage and enjoying the pressure from the massage is the ascending pathway. This type of pathway is responsible for carrying peripheral sensations, such as tactile stimuli from touch, to the brain for processing. The sensation Mary feels during the massage triggers receptors in the skin, leading to the activation of the somatosensory pathway. This is part of the sensory systems that follow specific pathways into the central nervous system (CNS), allowing the brain to interpret various sensations.

The sensory information from Mary's massage is specifically handled by one of the major ascending pathways in the spinal cord. Typically, there are two major ascending pathways: the dorsal column pathway which conveys fine touch, vibration, and proprioceptive information, and the spinothalamic pathway that primarily conveys pain and temperature. As Mary is enjoying the sensation of pressure, which is a form of tactile stimulus, the information is likely being conveyed via the dorsal column pathway, given that no pain or temperature change is being indicated. It is crucial to understand these pathways in assessing and diagnosing potential issues within the somatosensory system. Sensory stimuli are segregated within the spinal cord, so that the various tests for these stimuli can determine the functionality and integrity of each pathway. This is important not only for understanding how sensory experiences are processed but also in medical diagnostics and treatment planning for conditions affecting sensory perception.

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