BIOL 1F25 Lecture Notes - Lecture 3: Medical Optical Imaging, Muscle Tone, Neuron
21 Jul 2015
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Document Summary
It is very hard due to human ethical laws. One way it can be done is by monitoring the brain using optical imaging. Most of the knowledge about the brain has come from animal studies and testing. At the single cell level, it is almost impossible to tell the difference between cells from different species. Parallel processing- brain compensates when part of it is damaged. Glia, astrocytes (filter), oligodendrocytes (insulation) and schwann cells (greek for glue) *approximately 100 billion neurons in the brain (10x more glia) but recent research says there is an equal ratio. Similarities to other cells include plasma membrane, cytoplasm, organelles (power plant of cell), protein synthesizing machinery (rer) and a nucleus. **features unique to neurons are dendrites, generally info receiving areas and axons, generally info transmitting areas the larger the dendritic tree, the more connections are likely made onto that cell. Cerebellum (cerebellar cell) or location in circuit (primary, secondary, etc)
