Neurobiology During your shift as an emergency room physician, you admit a patie
ID: 44501 • Letter: N
Question
Neurobiology
During your shift as an emergency room physician, you admit a patient who has just fallen from a height of 30 feet while rock climbing and landed on his back and one side over rocky debris. Some of the symptoms the patient is presenting with are largely reduced motor control of his right leg from the hip down, a loss of pain and temperature sensation in his left leg from the hip down, and a loss of fine touch discrimination and proprioception in his right leg from the hip down. Which of the following is the correct diagnosis for the location of his spinal cord lesion?
Choose one.
A complete spinal cord lesion at T12
A partial lesion on the left side of the spinal cord at L5-S1
A partial lesion on the right side of the spinal cord at L2-L3
A complete spinal cord lesion at L2-L3
A partial lesion on the left side of the spinal cord at T12
A complete spinal cord lesion at T12
A partial lesion on the left side of the spinal cord at L5-S1
A partial lesion on the right side of the spinal cord at L2-L3
A complete spinal cord lesion at L2-L3
A partial lesion on the left side of the spinal cord at T12
Explanation / Answer
B-A partial lesion on the left side of the spinal cord at L5-S1
abnormal closure of central canal while development, beacuse of trauma, or beacuse of a tumor, result of which is the enlargement of central canal, resulting segmental bilateral loss of pain and temperature by the damage of decussating spinothalamic fibers.