Point 8 Problems Contents Anatomy

PROBLEM SOLVING #1 Which of the following are true regarding the shaded areas? There might be deficits that are not included in the responses. lesion results in deficit in pain and temp. from the contralateral (right) arm lesion results in deficit in vibration sense from the ipsilateral (left) arm contains descending axons that terminate in the ventral horn at ipsilateral (left) spinal segment C8 lesion results in deficit in unconscious proprioception from muscles innervated by dorsal root T1 on the ipsilateral (left) side none of the above   PROBLEM SOLVING #2 Which of the following are true regarding the shaded areas? There might be deficits that are not included in the responses. contains axons that arise from the contralateral (right) dorsal horn of spinal segment C7 (remember, C7 is two segments from T1) lesion results in deficit in vibration sense from the ipsilateral (left) foot contains descending axons that terminate in the ventral horn at ipsilateral (left) spinal segment T2 lesion results in deficit in slow pain from spinal segments T1 and below on the contralateral (right) side lesion results in spastic ipsilateral (left) leg   PROBLEM SOLVING #3 Which of the following are true regarding the shaded areas? There might be deficits that are not included in the responses. contains axons that arise from the contralateral (right) dorsal horn of the spinal cord at S1 (Think! Where is the cell body for the most medial fiber in the left ALS?) lesion results in spasticity of muscles innervated by ipsilateral (left) S1 lower motor neurons contains descending axons that terminate in the ventral horn at ipsilateral (left) spinal segment L5 lesion results in deficit in unconscious proprioception from muscles innervated by dorsal root L5 on the ipsilateral (left) side (be careful!!--remember how this info. gets to Clarke's nucleus) none of the above