Spinal Cord Tracts Flashcards
1
Q
Ascending Tracts (2)
A
- Sensory
- White Matter
2
Q
Fasciculus Cuneatus (3)
A
- Posterior/Dorsal Column
- Ascending/Sensory
- Trunk/Neck/UE proprioception, vibration, 2 point discrimination, graphesthesia
3
Q
Fasciculus Gracilis
A
- Posterior Gracilis
- Ascending/Sensory
- Trunk/LE proprioception, 2 point discrimination, vibration, graphesthesia
4
Q
Spinocerebellar Tract (Dorsal)
A
- Ascending/Sensory
- Ipsilateral subconscious proprioception, muscle tension, joint sense, trunk/LE posture
5
Q
Spinocerebellar Tract Ventral
A
- Ascending/Sensory
- Ipsilateral subconscious proprioception, muscle tension, joint sense, Trunk/UE/LE posture
6
Q
Spino-olivary Tract
A
- Ascending/Sensory
- Cutaneous/Proprioceptive organ information
7
Q
Spinoreticular Tract
A
- Ascending/Sensory
- Level of consciousness
8
Q
Spinotectal Tract
A
- Ascending/Sensory
- Spinovisual reflexes, Movement of eyes toward stimulus
9
Q
Spinothalamic Tract Anterior
A
- Ascending/Sensory
- Light touch, pressure
10
Q
Spinothalamic Tract Lateral
A
- Ascending/Sensory
- Pain, temperature
11
Q
Descending Tracts (3)
A
- Voluntary motor function, muscle tone, reflexes
- Visceral innervation
- Modulation of ascending sensory signals
12
Q
Corticospinal Tract Anterior
A
- Descending/Motor
- Ipsilateral voluntary, discrete, skilled movement
13
Q
Corticopsinal Tract Lateral
A
- Descending/Motor
- Contralateral voluntary fine movement
*Damage = + babinksi, loss of fine motor/skilled voluntary movement.
14
Q
Reticulospinal Tract
A
- Descending/Motor
- Facilitate/Inhibit voluntary/reflex activity via alpha/gamma motor neurons
15
Q
Rubrospinal Tract
A
- Descending/Motor
- Gross posture, facilitate flexor mm activity, inhibit extensor mm activity