Spinal Cord Tracts Flashcards

1
Q

Ascending Tracts (2)

A
  1. Sensory
  2. White Matter
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2
Q

Fasciculus Cuneatus (3)

A
  1. Posterior/Dorsal Column
  2. Ascending/Sensory
  3. Trunk/Neck/UE proprioception, vibration, 2 point discrimination, graphesthesia
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3
Q

Fasciculus Gracilis

A
  1. Posterior Gracilis
  2. Ascending/Sensory
  3. Trunk/LE proprioception, 2 point discrimination, vibration, graphesthesia
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4
Q

Spinocerebellar Tract (Dorsal)

A
  1. Ascending/Sensory
  2. Ipsilateral subconscious proprioception, muscle tension, joint sense, trunk/LE posture
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5
Q

Spinocerebellar Tract Ventral

A
  1. Ascending/Sensory
  2. Ipsilateral subconscious proprioception, muscle tension, joint sense, Trunk/UE/LE posture
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6
Q

Spino-olivary Tract

A
  1. Ascending/Sensory
  2. Cutaneous/Proprioceptive organ information
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7
Q

Spinoreticular Tract

A
  1. Ascending/Sensory
  2. Level of consciousness
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8
Q

Spinotectal Tract

A
  1. Ascending/Sensory
  2. Spinovisual reflexes, Movement of eyes toward stimulus
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9
Q

Spinothalamic Tract Anterior

A
  1. Ascending/Sensory
  2. Light touch, pressure
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10
Q

Spinothalamic Tract Lateral

A
  1. Ascending/Sensory
  2. Pain, temperature
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11
Q

Descending Tracts (3)

A
  1. Voluntary motor function, muscle tone, reflexes
  2. Visceral innervation
  3. Modulation of ascending sensory signals
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12
Q

Corticospinal Tract Anterior

A
  1. Descending/Motor
  2. Ipsilateral voluntary, discrete, skilled movement
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13
Q

Corticopsinal Tract Lateral

A
  1. Descending/Motor
  2. Contralateral voluntary fine movement

*Damage = + babinksi, loss of fine motor/skilled voluntary movement.

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14
Q

Reticulospinal Tract

A
  1. Descending/Motor
  2. Facilitate/Inhibit voluntary/reflex activity via alpha/gamma motor neurons
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15
Q

Rubrospinal Tract

A
  1. Descending/Motor
  2. Gross posture, facilitate flexor mm activity, inhibit extensor mm activity
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16
Q

Tectospinal Tract

A
  1. Descending/Motor
  2. Contralateral postural tone associated with auditory/visual stimuli
17
Q

Vestibulospinal Tract

A
  1. Descending/Motor
  2. Ipsilateral gross postural adjustment based on head movement, facilitates extensor mm activity, inhibit flexor mm activity

*Damage = paralysis, hypertonicity, hyperreflexive, clasp-knife reaction