PSYO 2570 Lecture Notes - Lecture 1: Santiago Ramón Y Cajal, Camillo Golgi, Golgi'S Method
6 Sep 2018
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Document Summary
Most anatomically diverse cell in the body (yet they all have common features). Parts of neurons: dendrites = input of information, cell body = life support (where organelles are located), axons = output of information. *discovered by camillo golgi and ramon y cajal. By using the: - golgi stain -> washing of tissues with silver salts, some neurons will be stained black. Today we use fluorescent dyes, which can be specialized to stain specific neurons. *neuronal structure is maintained (or changed) by the cytoskeleton* The axon cytoskeleton is very plastic during development, also serves as a highway for molecular motors. (remember: microtubules, intermediate filament, and microfilaments). Neuronal diversity is thought to be determined by genes. 1) complexity of human brain + variability of genes and brains among animals (meaning we cant really compare): 2) dscam alternates spicing when the gene"s dna are being transcribed by mrna. Rare example of neatly tie of genes with nervous system.
