Kinesiology 1080A/B Lecture Notes - Lecture 4: West Nile Fever, Lou Gehrig, Dorsal Root Ganglion

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 1080A/B
• Professor: Matthew Heath

Document Summary

Pathophysiology"s diseases of the nerves; disease of the cell body vs a disease of an axon. Lou gehrig may not have had als but rather west nile disease (you can get from mosquito) Motor (efferent) neurons transmit motor commands down the spinal cord: majority of these neurons arise in the primary motor cortex, connect to alpha neurons, blue line on diagram is a bundle of efferent neurons. Ventral root ganglia (under motor neurons) that"s ho(cid:449) i(cid:374)for(cid:373)atio(cid:374) lea(cid:448)es the spinal cord and innervates and extrafusal muscle fiber. Dorsal root ganglia where sensory signals enter to the spinal cord. The cerebral cortex/cerebrum: we have a left and right hemisphere, corpus collosum group of axons that separate the two hemispheres, two hemispheres look exactly the same. Individuals who are congenially blind (born blind) they have brain plasticity so what would otherwise be the v1 that part of their brain becomes specialized for brail reading.