SCI - Spinal Tracts Flashcards
What are the Ascending “Sensory” tracts
- Spinothalamic tract
- Lateral Spinothalamic tract
- Ventral Spinothalamic tract
- Dorsal Column
What 2 tracts make up the dorsal column and which one is for the UE and which one is for the LE
fasciculus gracilis LE
fasciculus cuneatus UE
Spinothalamic tract controls, how many tracts and what are they
Pain, temp, and touch
2
Lateral Spinothalamic tract
Ventral Spinothalamic tract
Lateral Spinothalamic tract
controls
controls Pain and temperature
Ventral Spinothalamic tract
controls
Touch
Spinothalamic tract
crosses over
Ascend 1-2 ipsilateral spinal segments then crosses to contralateral
Dorsal Column controls
Proprioception, vibratory sense, deep touch, two point discrimination
Dorsal Column crosses over at
Crosses at the medulla oblongata
What are the Descending Spinal Tracts
- Lateral corticospinal
- Ventral corticospinal
- Rubrospinal
- Vestibulospinal
- Lateral and medial reticulospinal
Lateral corticospinal controls
Voluntary motion, especially distal limbs
Lateral corticospinal crosses over
From the precentral cortex to through the medulla oblongata
Crosses @ lower medulla oblongata
Ventral corticospinal controls
Voluntary motion of axial musculature
Ventral corticospinal
crosses over
Does not crossover
Rubrospinal controls
Voluntary motion of UEs, especially precision control
Vestibulospinal controls
Posture and Balance
