Card 8 / 23: How are the dermatomes represented in the anterolateral system?
A.)
They are represented somatotopically with the sacral axons more superficial, and the cervical segments more medial.
B.)
There is no somatotopic organization of the anterolateral system.
C.)
They are represented somatotopically such that as one progresses from the pial surface inward one encounters cervical, thoracic, lumbar and then sacral axons.
Answer:
A.) They are represented somatotopically with the sacral axons more superficial, and the cervical segments more medial.
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Additional impairments such as motor neuron compression may also occur, but usually after pain and thermal sensation are lost.
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Neuroanatomy 05 Somesthetic Sensation
Author:
M.D.Stephen VoronLecturer
University of Utah
USA
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