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Reticulospinal tracts important for maintenance of

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Unformatted text preview: posture from vestibular labyrinth labyrinth. – reticulospinal tracts: important for maintenance of posture; cortical inputs. – tectospinal (or colliculospinal) tract: originates in superior colliculus, projects contralaterally to max. cervical segments of spinal cord. Important in coordinating head and eye movements; cortical inputs. KNES 462 13 ©FK ‘08 Brain Stem: descending pathways III • lateral pathways terminate in the dorsolateral part – rubrospinal tract: control of distal muscles • aminergic pathways originate in brain stem nuclei and branches diffusely throughout the spinal cord: – modulate excitability of spinal neurons. 14 KNES 462 ©FK ‘08 KNES 462 ©FK ‘08 The Brainstem: Medial Pathways 15 5 KNES 462 The Brainstem: Lateral Pathways 16 KNES 462 ©FK ‘08 6...
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