Lesions

Question 1

Lesion where would cause anesthesia of the correspondings sensory dermatome or diminsh motor reflexes including muscle tonicity?

Answer 1

Dorsal roots

Question 2

Lesion in the posterior column to the fasciculus gracilis and fasciculus cuneatus would cause what?

Answer 2

Fasciculus Gracilis: ipsilateral proprio/2-point tactile anesthesia (LOWER limb)

Fasciculus Cuneatus: ipsilateral proprio/2-point tactile anesthesia (UPPER limb)

Question 3

Lesions in the Lateral corticospinal tract would cause?

Answer 3

Ipsilateral spastic paralysis

Question 4

Lesion of the Lateral Spinothalamic tract would cause?

Answer 4

Contralateral pain/temp anesthesia, 2 sensory dermatomes below level of lesion

Question 5

Lesion of the anterior white commissure would cause what?

Answer 5

Bilateral loss of pain and temperature

Question 6

Lesion of the Anterior Horn would cause what?

Answer 6

Flaccid paralysis

Question 7

Lesion of the Spinal Lemniscus of the Medulla would cause?

Answer 7

Contralateral Hemianalgesia (BODY)

Question 8

Lesion of the Descending Nucleus and Tract (V) of the Medulla would cause?

Answer 8

Unilateral hemianalgesia and thermal hemianesthesia of face

Question 9

Lesions of the Medial Longitudinal Fasciculus of the medulla would cause?

Answer 9

Internucular Opthalmoplegia

Question 10

Lesions of the Corticospinal Tract in the medulla would cause?

Answer 10

Contralateral spastic hemiplegia

Question 11

Lesions of the Medial Lemniscus of the Upper Medulla would cause?

Answer 11

Contralateral proprio/2-point hemianesthesia (BODY)

Question 12

Lesion of the Corticobulbar Tract in the Pons would cause?

Answer 12

Supranuclear Facial Palsy