ANSC 3080 Study Guide - Midterm Guide: Dendrite
17 Oct 2017
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Document Summary
Define the structure and function of different classes of neurons. Neurons: are the nerve cells able to transmit information composed of a cell body and processes (axons and dendrites) Axon: moves information away from the cell body. 1 axon, 1 cell body, within the dentrites. 1 axon, 1 dendrite and 1 cell body. Transfers information from cns to muscles and glands. The inside of the membrane is more negative relative to outside. Resting membrane is highly permeable to k+ and barely permeable to ca2+, na+ and cl- Passive leakage of ions through channels (concentration gradient - more na+ outside, it will move inside, more na+ inside, it will move outside) Concentrations of ions remains relatively constant inside the cell --> however we need to compensate for diffusion leakage. This is going against the gradient so it requires a lot of energy. We do this to bring the cell back to rmp.
