PSYC 271 Lecture Notes - Lecture 12: Corticospinal Tract, Betz Cell, Cranial Nerves

• School: Queen's University
• Department: Psychology
• Course: PSYC 271
• Professor: Amanda Maracle

Document Summary

Descend within white matter synapse into interneurons in grey matter. Finally synapse into motor neurons that control wrists, hands, fingers and toes and shit) Red nucleus of the midbrain cross to contralateral side nerves (facial control) others v. Some terminate on the nucleus of the cranial. Ventromedial pathways global movements white matter of the spinal chord. Synapse into interneurons in the grey matter of the spinal chord. These synapse onto motor neurons that control muscles of the arms and legs. Terminate diffusely and bilaterally on interneurons within the grey matter of multiple segments of the spinal chord. These neurones synapse onto motor neurons that control the trunk and proximal limb muscles on the sides of the body. Descends bilaterally and terminates diffusely on interneurons in the brainstem nerves. Continues descent along ventromedial white matter of spinal chord. Synapses onto motor neurons within multiple segments of the spinal chord that control trunk and proximal limb muscles.