Question 3 / 19:  Regarding this poorly myelinated tract:
A.  It consists of first order sensory axons with ascending and descending branches which run longitudinally
for 1 to 3 segments.
B.  It is made up of second order sensory axons which ascend ipsilaterally to the gracile nucleus
in the medulla.
C.  It contains axons responsible for the monosynaptic reflex.
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Explanation:

The localization of spinal cord injuries is an example of the practical use of information about dermatomes. Sensory loss from peripheral nerve lesions have a different distribution and usually are both sensory and motor while a cord lesion might be sensory, motor or both.

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Neuroanatomy 05 Somesthetic Sensation

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Attribution:  Stephen C. Voron, M.D., Suzanne S. Stensaas, Ph.D. , Department of Neurobiology and Anatomy, University of Utah, School of Medicine, Salt Lake City, Utah 84132, http://library.med.utah.edu/kw/hyperbrain
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Yacoub Jayoghli
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