Jenna is a 22-year-old female athlete. At the gym while performing a one-leg dea

Question

Jenna is a 22-year-old female athlete. At the gym while performing a one-leg dead lift, she falls down and loses consciousness. Immediately, nearby staff call emergency personnel who arrive within minutes. Upon recognizing the seriousness of Jenna’s injury, emergency responders immobilize her neck and secure her to a rigid board prior to transporting her to the emergency room of the nearest hospital. When she arrives at the hospital, Jenna is conscious but complains that she feels numb in some places. Upon examination by the emergency room personnel, Jenna is found to have decreased sensation to touch, pressure, and vibration in the left lower extremity as well as decreased temperature discrimination (cold vs. warm) and pain sensation in the right lower extremity. She also has loss of muscle strength of her left lower limb. Jenna’s upper limbs are not affected and her other vital signs are within normal limits; cognitive testing is normal as well (counts backward from 100 by 7s; knows name, date, place).

1. (Where in Jenna’s body do you think you would find damaged tissue to explain these symptoms [for example, unilateral left or right, bilateral, cerebral cortex, medulla oblongata, spinal cord, if cord, at approximately what spinal cord segment level]? Your answer must be a location that explains all the observed symptoms, not a list of several different areas of damage.

Explanation / Answer

Answer- she is having lesions in the lower lumbar region of spinal cord approximately.there is no lesion in brain.it is a case of brown sequard syndrome.in this syndrome there is hemisection of the spinal cord.as the pressure,vibration and motor fibres to the muscle are carried out by the tracts which do not cross in the spinal cord and they ascend ipsilateraly,while those of pain and temprate crosses to opposite side in spinal cord.hence in the left side lesion there will be loss of right side pain and temperature.

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