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Flashcards in Spinal Cord Tracts Deck (22)
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1

What are the Ascending Tracts of the spinal cord?

Fasciculus Cuneatus
Fasciculus Gracilis
Spinocerebellar Tract (dorsal and ventral)
Spino-olivary tract
spinoreticular tract
spinotectal tract
spinothalamic tract (anterior and lateral)

2

What are the descending Tracts of the spinal cord?

Corticospinal tract
Reticulospinal tract
rubrospinal tract
tectospinal tract
vestibulospinal tract

3

If a person suffers a lesion in the Fasciculus Cuneatus column what deficits would the experience?

sensory input from the trunk, neck, and upper extremities including proprioception, vibration, two-point discrimination and graphethesia

4

If a person suffers a lesion in the Fasciculus Gracilis column what deficits would the experience?

sensory information from the lower extremities including proprioception, two point discrimination, vibration, and graphesthesia

5

If a person suffers a lesion in the Dorsal Spinocerebellar Tract column what deficits would the experience?

ipsilateral subconscious proprioception, tension in muscles, joint sense, and posture of the trunk and lower extremities

6

If a person suffers a lesion in the Ventral Spinocerebellar Tract column what deficits would the experience?

ipsilateral subconscious proprioception, tension in muscles, joint sense, and posture of the trunk and upper/lower extremities

7

If a person suffers a lesion in the Spino-Olivary Tract column what deficits would the experience?

cutaneous and proprioceptive organ sensation loss to the cerebellum

8

If a person suffers a lesion in the Spinoreticular Tract column what deficits would the experience?

loss of different levels of conciousness

9

If a person suffers a lesion in the Spinotectal Tract column what deficits would the experience?

spinovisual reflexes and loss of movement of the eyes and head towards a stimulus

10

If a person suffers a lesion in the Anterior Spinothalamic Tract column what deficits would the experience?

loss of crude touch and pressure

11

If a person suffers a lesion in the Lateral Spinothalamic Tract column what deficits would the experience?

loss of pain and temperature sensation

12

If a person suffers a lesion in the Anterior Corticospinal Tract column what deficits would the experience?

loss of ipsilateral voluntary, discrete, and skilled movements

13

If a person suffers a lesion in the Lateral Corticospinal Tract column what deficits would the experience?

loss of contralateral voluntary fine movement

(will have a positive babinksi sign, absent superficial abdominal reflexes and cremasteric reflexes and the loss of fine motor or skilled voluntary movement)

14

If a person suffers a lesion in the Reticulospinal Tract column what deficits would the experience?

loss of facilitation or inhibition of voluntary and reflex activity through the influence on alphas and gamma motor neurons

15

If a person suffers a lesion in the Rubrospinal Tract column what deficits would the experience?

loss of motor input of gross postural tone, facilitating activity of flexor muscles, and inhibiting the activity of extensor muscles

16

If a person suffers a lesion in the Tectospinal Tract column what deficits would the experience?

loss of contralateral postural muscle tone associated with auditory/visual stimuli

17

If a person suffers a lesion in the Vestibulospinal Tract column what deficits would the experience?

loss of ipsilateral gross postural adjustments subsequent to head movements, facilitating activity of the extensor muscles, and inhibiting flexor muscles

18

What is Anterior Cord syndrome?

What is the typical MOI?

What are the symptoms?

an incomplete lesion that results from compression and damage to the anterior part of the spinal cord or anterior spinal artery

MOI is usually excessive cervical flexion

loss of motor function and pain and temperature sense below the lesion due to damage of the corticospinal and spinothalamic tracts

19

What is Brown Sequard's syndrome?

What is the typical MOI?

What are the symptoms?

An incomplete spinal hemisection lesion

most common MOI is a stab wound

-paralysis and loss of vibratory and position sense on the same side as the lesion due to corticospinal tract damage
-loss of pain and temperature sense on the opposite side of lesion due to damage to lateral spinothalamic tract

20

What is Cauda Equina syndrome?

What are the symptoms?

spinal injury under L1 level where the long nerve roots transcend

flaccidity, areflexia, and impairment of bowel and bladder function

21

What is Central Cord syndrome?

What is the typical MOI?

What are the symptoms?

incomplete spinal lesion resulting from compression and damage to the central portion of the spine

common MOI is usually cervical hyperextension that damages the spinothalamic and corticospinal tracts

more motor deficits than sensory and UE are more involved than LE

22

What is Posterior Cord syndrome?

What are the symptoms?

relatively rare syndrome that is caused by compression of the posterior spinal artery

loss of proprioception, two point discrimination, and stereognosis (motor function is preserved)