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9 Cards in this Set
- Front
- Back
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This tract is concerned with volitional skilled motor activity.
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Lateral corticospinal tract
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The Lateral corticospinal tract arises from...
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...the primary motor cortex.
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The Lateral corticospinal tract decussates where?
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The Medulla.
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Where does the Anterior corticospinal tract have most control?
Where does it decussate? |
Head and upper trunk.
Decussates in spinal cord levels in the anterior white commissure. |
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The reticulospinal tract:
Controls what? Where are the formation centers of extensors and flexors? |
Controls body language, locomotion and body control.
Extensors->Pons Flexors->Medulla |
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The tectospinal tract:
Where does it cross? What does it control? |
In the brainstem
Controls reflexive movements of head and neck in response to visual and auditory stimuli. |
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Vestibulospinal tract:
Where does it cross? What does it control? |
It doesn't
It controls posture and balance in response to movement or tilting of the head. |
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Rubrospinal tract:
What does it control? |
Controls quadrapedal movements...not as significant in humans.
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Raphespinal tract:
What does it control? |
It modulates sensory transmission between 1st and 2nd order neurons in posterior gray horn with respect to painful stimuli.
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