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40 Cards in this Set
- Front
- Back
What is the origin of the lateral corticospinal tract?
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Areas 6, 4, 1, 2, 3, 5, 7.
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What is the origin of the anterior corticospinal tract?
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Areas 6, 4
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What is the origin of the corticobulbar tract?
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Areas 6, 4, 1, 2, 3, 5, 7
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What is the origin of the rubrospinal tract?
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red nucleus (magnocellular)
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What is the origin of the lateral vestibulospinal tract?
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lateral vestibular nuclues
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What is the origin of the medial vestibulospinal tract?
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medial vestibular nucleus
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What is the origin of the reticulospinal tract?
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pontine and medullary reticular nuclei
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What is the origin of the tectospinal tract?
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superior colliculus
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Does the lateral corticospinal tract decussate, and if so, where?
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Yes - cervicomedullary junction
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Does the anterior corticospinal tract decussate, and if so, where?
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No - descends ipsilaterally
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Does the corticobulbar tract decussate, and if so, where?
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Depends on the nuclei - descend bilaterally, contralaterally and/or ipsilaterally
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Does the rubrospinal tract decussate, and if so, where?
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Yes - midbrain (ventral tegmentum)
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Does the lateral vestibulospinal tract decussate, and if so, where?
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No - ipsilateral
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Does the medial vestibular tract decussate, and if so, where?
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No - bilateral
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Does the reticulospinal tract decussate, and if so, where?
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No - ipsilateral
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Does the tectospinal tract decussate, and if so, where?
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Yes - midbrain (dorsal tegmentum)
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In what spinal column is the lateral corticospinal tract?
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lateral
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In what spinal column is the anterior corticospinal tract?
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anteromedial
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Would you find the corticobulbar tract in a spinal column?
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NO!! Terminates in cranial nerve nuclei (V, VII, IX, X, XI, XII).
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In what spinal column is the rubrospinal tract?
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lateral
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In what spinal column is the lateral vestibulospinal tract?
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anteromedial
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In what spinal column is the medial vestibulospinal tract?
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anteromedial
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In what spinal column is the reticulospinal tract?
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anteromedial
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In what spinal column is the tectospinal tract?
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anteromedial
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Where does the lateral corticospinal tract terminate?
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all spinal levels
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Where does the anterior corticospinal tract terminate?
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cervical and thoracic levels
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Where does the corticobulbar tract terminate?
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cranial nerve nuclei -- V, VII, IX, X, XI, XII
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Where does the rubrospinal tract terminate?
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cervical spinal cord
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Where does the lateral vestibulospinal tract terminate?
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all spinal levels
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Where does the medial vestibulospinal tract terminate?
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cervical and upper thoracic levels
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Where does the reticulospinal tract terminate?
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all spinal levels
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Where does the tectospinal tract terminate?
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cervical spinal cord
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What is the function of the lateral corticospinal tract?
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voluntary movement of limb muscles
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What is the function of the anterior corticospinal tract?
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voluntary movement of axial muscles
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What is the function of the corticobulbar tract?
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voluntary movement of cranial muscles
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What is the function of the rubrospinal tract?
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voluntary movement of limb muscles (mainly flexors)
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What is the function of the lateral vestibulospinal tract?
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balance and posture
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What is the function of the medial vestibulospinal tract?
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control of head position / neck muscles
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What is the function of the reticulospinal tract?
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semi-automatic motor control, posture and walking
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What is the function of the tectospinal tract?
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coordination of neck and eye movements
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