Trauma: spinal cord syndromes

Question 1

spinal cord syndromes are caused by …

Answer 1

spinal cord syndromes are caused by lesions of the ascending or descending spinal tracts that result from trauma, spinal compression, or occlusion of spinal arteries.

Question 2

Most common spinal cord syndrome

Answer 2

Central cord syndrome

Question 3

What are some examples of spinal cord syndromes?

Answer 3

-Central cord
-anterior cord
-posterior cord
-Brown-sequard
-cauda equina
-conus medullaris

Question 4

Neuroanatomy review: what are the descending tracts that originate in the cerebral cortex and extend to the alpha motor neuron in the ventral horn of the spinal cord

Answer 4

Lateral and anterior corticospinal tracts

Question 5

What tract or tracts control motor function?

Answer 5

Lateral and anterior corticospinal tracts

Question 6

Which tract:
Function: conveys epicritic sensation and proprioception

Answer 6

dorsal column

Question 7

Which column: Function: conveys protopathic sensation

Answer 7

spinothalamic tract

Question 8

Which major tract is responsible for sensation?

Answer 8

Anterolateral

Question 9

Which tract is responsible for motor?

Answer 9

Descending tracts including the corticospinal tracts

Question 10

Trauma, occlusion of the posterior spinal artery, multiple sclerosis impacting the posterior column would result in what?

Answer 10

Bilateral loss of proprioception, vibration, and touch sensation below the level of the lesion

Recall that posterior columns are important for sensation of touch/vibration/pressure/fine touch

Question 11

Spinothalamic tracts are responsible for

Answer 11

Pressure sensation (anterior)
Protopathic sensation
Temperature (lateral)
Pain (lateral)
Crude touch (anterior)

Question 12

The corticospinal tracts are (ascending or descending) and the spinothalamic tracts are (ascending or descending)

Answer 12

corticospinal tracts are (descending) and the spinothalamic tracts are (ascending)

Question 13

What tracts are impacted in central cord syndrome?

Answer 13

Bilateral central corticospinal tracts and lateral spinothalamic tracts

Question 14

What tracts are impacted in anterior cord syndrome?

Answer 14

Corticospinal tracts and spinothalamic tracts

Question 15

What tracts are impacted in posterior cord syndrome?

Answer 15

Dorsal column (remember its made of thefasciculus gracilis and cuneatus)

Question 16

What is impacted in brown sequard syndrome?

Answer 16

hemisection of the cord leading to ipsilateral loss of vibration sense, proprioception, paresis, and contralateral loss of pain and temp sensation.
It can lead to horner syndromein lesions above t1

Question 17

a syndrome caused by injury to the central region of the spinal cord, which includes the central corticospinal tracts and decussating fibers of the lateral spinothalamic tract

Answer 17

Central cord syndrome

Question 18

Answer 18

Brown sequard

Question 19

Ipsilateral
Loss of all sensation at the level of the lesion
Segmental flaccid paralysis at the level of the lesion due to damage of lower motor neurons

Contralateral: loss of pain, temperature, and nondiscriminative touch (crude touch) one or two levels below the level of the lesion due to an interrupted spinothalamic tract

Answer 19

Brown sequard