NROB60H3 Chapter Notes - Chapter 2: Myelin, Dynein, Schwann Cell
13 Sep 2016
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Document Summary
There are two types of cells in the brain: neurons and glia. Neurons sense the changes in the environment, and communicate these changes to other neurons and command the body"s response to these changes. Glia, or glial cells, contribute to the function of the brain by mostly insulating, supporting, and nourishing neighbouring neurons. Early in the 19th century, scientists immersed issues in formaldehyde, thereby hardening, of. These tissues were then thinly sliced via device called a microtome. This spawned the microscopic study of the structure of tissues that came to be known as histology. Franz nissl - showed a class of basic dyes that would stain the nuclei of all cells and also stain clumps of material surrounding the nuclei of neurons . The clumps are known as nissl bodies, and the stain is known as the nissl stain. The stain helps distinguish neurons and glia from one another.
