Basic Neurophysiology

From Neurophyspedia, the Wikipedia of Intraoperative Neurophysiology
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Neurophysiology is the study of the function of the nervous system.

Membrane Ion Channels

All animal cells are enclosed in a plasma membrane, which separates its cytoplasm with the extracellular environment. Cell membrane has the structure of a lipid bilayer, with large molecules embedded in it. Concentration of ions are different across the cell membrane, with more sodium ions (Na+) and chloride ions (Cl-) outside the cell, and more potassium ions (K+) and negative charged protein molecules (A-) inside the cell.

Action Potential

Propagated Neural Activity

Synaptic Transmission

Recording Techniques

Electrodes

Amplifiers

Filtering

Signal to Noise Ratio

Signal Averaging

Electrical Safety

References