NEUR 2200 Lecture Notes - Lecture 5: Resting Potential, Axon Terminal, Extracellular Fluid
8 Apr 2016
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Document Summary
Neurophysiology: generaion, transmission, and integraion of neural signals. They are the way the neurons can communicate. We receive informaion about the world through our sensory sensaions: bodily sensaions (touch and balance, auditory sensaions (hearing, visual sensaions (sight, chemical sensaions (taste and olfacion) Neurons related to these diverse receptors all have ion channels on their cell membranes. These ion channels iniiate the chain of events that produces a nerve impulse or acion potenial. It comes into our brain and tells us what to do with the informaion. Every part of our body is covered with hairs except palms botom of feet and lips and genitals. Each hair on our body allows us to detect the slightest displacement. Dendrite of a touch neuron is wrapped around the base of each hair- every ime they are displaced they change the ion channels. Hair displacement opens stretch-sensiive channels in the dendrite"s membrane.
