Quize Protection of CNS 3 Welcome to your Quize Protection of CNS 3 1. If sciatic nerve affection is the cause of Samy’s lower limb weakness, which of the following nerve roots is NOT involved? L3 L4 L5 S1 None 2. There was a compression in spinal serve LS & 31 This is most likely because of: Nucleus bulbosis herniation Legamentum flavum Posterior longitudinal ligament None 3. Tethered cord syndrome is diagnosed by MRI whee spinal cord ends at which of the fellewing level or below at child: Dorsal 11/12 Dorsal 12/Lumbar 1 Lumbar 1/2 Lumbar 2/3 None 4. a patient had a problem in the cervical region vertebrae, and there was a narrowing in the veriebral canal. So the doctors performed e laminectomy. What structure would also be removed? nuchal ligament ligamentum flavum anterior longitudinal ligament None 5. Case scenario Hanan is o 55-year-old patient who is complaining of lower back pain and radiating to the back of thigh, right led and great toe with tingling and numbness. on examination she showed loss of motor power and loss of light touch sensation. The doctor explains it by stenosis of the vertebral canal caused by hypertrophied ligament. On visual examination, she showed convergent squint. She was also overdosing of Fevadol plus and when she tried to stop it she feit shaky and sweaty. The doctor referred her to pain management clinic. Hypertrophy of which of the following ligaments would likelybe the couse of vertebral canal stenosis? Anterior longitucinal ligament. Posterior longitudinal ligament. Ligamentum flavum Interspinous ligament. None Time's up