Descending Pathways Flashcards by Rachel Shaeffer

Q

Origin of corticospinal tract

A

Motor cortex

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Q

Spinal location of corticospinal tract

A

Lateral funiculus

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Q

Spinal laterality of corticospinal tract

A

Contralateral

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Q

Spinal termination of corticospinal tract

A

Distal limb motor pools

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Q

Function of corticospinal tract

A

Facilitates flexion, inhibits extension

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Q

Origin of rubrospinal tract

A

Red nucleus

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Q

Spinal location of rubrospinal tract

A

Lateral funiculus

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Q

Spinal laterality of rubrospinal tract

A

Contralateral

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Q

Spinal termination of rubrospinal tract

A

Forelimb motor pools

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Q

Function of rubrospinal tract

A

Facilitates flexion, Inhibits extension

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Q

Origin of lateral vestibulospinal tract

A

Lateral vestibular nucleus

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Q

Spinal location of lateral vestibulospinal tract

A

Ventral funiculus

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Q

Spinal laterality of lateral vestibulospinal tract

A

Ipsilateral

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Q

Spinal termination of lateral vestibulospinal tract

A

Proximal lower motor neuron pools

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Q

Function of lateral vestibulospinal tract

A

Facilitates extension, inhibits flexion

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Q

Origin of medial reticulospinal tract

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A

Medial reticular formation

Q

Spinal location of medial reticulospinal tract

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A

Lateral funiculus

Q

Spinal laterality of medial reticulospinal tract

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A

Bilateral

Q

Spinal termination of medial reticulospinal tract

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A

Proximal lower motor neuron pools

Q

Function of medial reticulospinal tract

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A

Facilitates extension, inhibits flexion

Q

Origin of tectospinal tract

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A

Rostral colliculus

Q

Spinal location of tectospinal tract

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A

Ventral funiculus

Q

Spinal laterality of tectospinal tract

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A

Contralateral

Q

Spinal termination of Tectospinal tract

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A

Proximal lower motor neuron pools

Function of tectospinal tract

Visual & auditory startle reflexes