PSYC 355 Chapter Notes - Chapter 2: Wallerian Degeneration, Cerebral Cortex, Microglia
6 Dec 2016
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Document Summary
Specialized functions of cells + how they interact determine functions of organs. No need to separate brain + mind. Neurons sense changes in environment, communicate changes to other neurons + command body"s responses to the sensations. Glia contribute to brain function mainly by insulating, supporting + nourishing neighboring neurons. The golgi stain percentage of neurons become darkly coloure. Brain cells 0. 01-0. 05 mm in diameter arrangement/ cytoarchitecture of neurons in different parts of the brain. Study of cytoarchitecture led to realization that brain consists of many. Nissl stain distinguishes between neurons + glia & enables histologists to study the. Golgi stain: soaking brain tissue in a silver chromate solution makes a small. Swollen region containing cell nucleus cell body, soma, perikaryon. Thin tubes radiating from soma = neurites 2 types: axons and dendrites. Shows neurons have at least 2 distinguishable parts central region containing the cell nucleus + numerous thin tubes that radiate from central region.
