Cells and Structures: the Anatomy of the Nervous System
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JosephClyde on August 31, 2012
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Cells and Structures: the Anatomy of the Nervous System
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15 terms
Terms | Definitions |
|---|---|
 .aWhat do "Golgi Stains" help visualize? | ... |
| .b What do "Nissl stains" help visualize? | ... |
| .c What does "Immunocytochemistry/ immunofluorescence" help detect? And how does it work? | ... |
| .d What is "Autoradiography"? What is "Situ Hybridization"? | ... |
| What are "Immediate early genes (IEG)s? | genes that are expressed when cells first become active c-fos is the most widely used of IEGs By using immunocytochemistry (ICC) to label the IEG product, researches can identify brain regions that were active |
| What is "Anterograde Labeling"? | Anterograde labelinig uses radioactive molecules which are taken up by the cell and then transported to the axon tips |
| .e What is "Retrograde Labeling? | Retrograde labeling uses horseradish peroxidase (HRP) which is taken up in the axon terminals and transported to the cell bodies, then visualized through chemical reactions |
| .f What are the four mane zones of a neuron? | ... |
| .g What are the three general shapes or neurons? | Multipolar - one axon, many dendrites; most common type Bipolar neurons - one axon, one dendrite Unipolar neurons - a single extension branches in two directions, forming an input zone and an output zone |
| .h What is "Axonal transport"? | The bidriectionial movement of materials within an axon |
| What is the name of the disease which consists of a demyelination of neurons? | Multiple Sclerosis |
| Name the four most common Glial cells | Oligodendrocytes - mylein sheat of CNS Schwann Cells - myelin sheath of PNS Astrocytes - contribute to Blood brain barrier Microglial cells - clean debris |
| .i What are 6 functions of an Astrocyte? | ... |
| How much of our total oxygen is consumed by the brain? | 20% |
| .j What is Korsakoff's syndrome? | ... |
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