NEUR 2600 Lecture Notes - Spinal Cord, Ventral Root Of Spinal Nerve, Dorsal Root Of Spinal Nerve
Document Summary
It"s function, effects of damage, approaches to fixing that. Every cell and connection in the spinal cord has a function. Evolved from early animals that had spinal cords of sorts i. Transcription factors that activate other genes that in turn produce the segments of the body of animals - they are read off from head to tail during development. In humans, they"ve duplicated with four sets of hox genes, similar to that of a fruit fly. Color coded diagrams in powerpoint iii. iv. v. Mutations - extra set of wings, nervous system, in humans - extra finger, etc. Each segment of the spinal cord essentially runs a certain part of the body. Dermatones in each person are a little different. The dorsal roots are sensory and the ventral roots are motor. Magendie was able to find and cut them in puppies b. Motor coming from spinal cord to muscles a)
