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what are the 8 tracts found in the white matter of the spinal cord?
1. Lateral corticopsinal
2. anterior corticospinal
4. lateral vestibulospinal tract
5. lateral spinothalamic
6. fasciculus cuneatus
7. fasciculus gracilis
which are UPPER MOTOR NEURON tracts in the Spinal cord and are they descending or ascending?
1. Lateral corticospinal tract
2. Anterior corticospinal tract
3. Rubrospinal tract
4. Lateral vestibulospinal
Girl, they all be descending tracts!
what are the SENSORY TRACTS in the spinal cord and are they ascending or descending?
1. lateral spinothalamic
2. anterior spinothalamic
3. fasciculus gracilis
4. fasciculus cuneatus
what are the features of the lateral corticospinal tract?
Its a descending motor neuron fibers descend from the cerebral cortex from an upper motor neuron
what is the function of the lateral corticospinal tract
Synapses on and controls the activity of LATERAL MOTOR NEURONS
-lateral corticospinal = lateral motor neurons
what are some features of the anterior corticospinal tract?
Descending motor neuron fibers from cerebral cortex ie upper motor neuron
what is the function of the anterior corticospinal tract?
synapses and controls MEDIAL motor nuclei
-Cortical ANTS like to MEDitate
what are some features of the RUBROSPINAL TRACT?
Descending motor neuron fibers from red nucleus of midbrain (UMN)
what are some features of the lateral vestibulospinal tract?
Descending motor neuron fibers from the LATERAL VESTIBULAR NUCLEUS OF BRAINSTEM (UMN)
what are some features of the LATERAL spinothalamic tract?
ASCENDING sensory neuron fibers from spinal cord
what is the function of the lateral spinothalamic tract?
transmits Pain and Temperature information to the thalamus.
what are some features of the anterior spinothalamic tract?
ascending sensory neuron fibers from spinal cord
what is the function of the anterior spinothalamic tract?
transmits LIGHT TOUCH information to the thalamus
what are some features of the fasciculus cuneatus?
ascending sensory neuron fibers from spinal cord or T6 and above
what is the function of the fasciculus cuneatus?
transmits 2 point tactile descrimination, conscious proprioception, vibrations, stereognosis to medulla
what are some features of the fasciculus gracilis
ascending sensory neuron fibers from posterior root ganglia of T7 and below
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