Neurons - • Microglia – Monitor health of neurons and...

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Neurons Neurons and neuroglia (multiple sclerosis and neuroglia) Where are neurons in the body? Types of neurons and their functions How do neurons work? Action potentials Synapses
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The Basics of a Neuron Cell body with nucleus Axon (carries electrical message) Note Schwann cells Dendrites (bring stimulus to cell body) Axonal terminus
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Neurons and neuroglial cells Axon in peripheral nervous system with myelin sheeth formed by Schwann cells Provides for insulation and allows for saltatory propagation of action potentials
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Neuroglial cells in CNS
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Neuroglial cells in CNS Astrocytes Most abundant and versatile Control chemical environment around neurons Also signal among themselves with slow chemical signals
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Unformatted text preview: • Microglia – Monitor health of neurons and transform into immune macrophages (normal immune cells have no access to CNS) • Ependymal cells – Line cavities of brain/CNS – Barrier between CFS and tissue fluid – Cilia beat to move CFS • Oligodendrocytes – Myelin sheaths in CNS Types of Neurons--structural classes Types of Neurons—where in body Types of neurons--examples How do neurons work—action potentials Measuring membrane potential Diffusion and action potential Saltatory conduction and role of Schwann cells What happens at the end— chemical synapse • Neuro-muscular junction is synapse between motor unit and muscle cell (motor unit)...
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This note was uploaded on 12/28/2011 for the course STEP 1 taught by Professor Dr.aslam during the Fall '11 term at Montgomery College.

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Neurons - • Microglia – Monitor health of neurons and...

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