NEUR30003 Lecture Notes - Lecture 12: Pliers, Cytoarchitecture, Vesicular Texture

• School: University of Melbourne
• Department: Neuroscience
• Course: NEUR30003
• Professor: Peter

Document Summary

Neurons that excite the neurons which activate muscle is a clinical term things that controls the excitability of lower motor neurons supra-spinal inputs=inputs from the brain. Overall organization of neural structures that control movement. Basal ganglia and cerebellum has a modulatory influence on the hierarchy. Motor neurons close to the midline, medial in the spinal cord innervate muscles that are close to axis/midline of body. Motor neurons in the lateral part of the spinal cord innervate muscles that are distal to the body. Mapping of the upper motor neurons reflect this same somatotopic organization in terms of how fibers arrive o that point: supra-spinal (descending) inputs to motoneurons anatomical considerations. Two main sources of big pathway of information coming down from the brain: medial ventral (called medial white matter) Make connections with motor neurons close to midline, targeting the proximal muscles: lateral: motor neurons (distal muscles) send axons and make synapses with the lateral.