Spinal_Cord_Review - 3 HUGE dorsal horn = sensory receptors...

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1 Spinal Cord Review NS 102 Cervical (white matter) Posterior Column (fasc. gracilis and cuneatus) Anterior column Lateral column Fasciculus propruis (just outside grey matter)
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2 Cervical (grey matter) Dorsal Horn Ventral Horn Lateral Horn (seen in thoracic section) Rexed’s laminae 1-10 Cervical (sulcus and septum) Posterior median sulcus & septum Posterior-intermediate- lateral septum Posterior lateral sulcus Anterior lateral sulcus Anterior median fissure
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3 Sacral - 5 1. Very little white matter compared to other sections 2. Large ventral horn = upper leg and pelvis muscle
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Unformatted text preview: 3. HUGE dorsal horn = sensory receptors of genital area Lumbar - 5 1. Increase in white matter from sacral 2. Large anterior horn = muscles of legs, foot, toes 4 Thoracic - 12 1. Lateral horn = site of sympathetic nervous system 2. Increase in white matter 3. Very little grey matter = minimal muscle control in chest and abdomen Cervical - 8 1. Maximum amount of white matter = all of the fibers ascending and descending 2. Large anterior horn = many motor neurons to arms and hands...
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