Psychology 2221B Chapter Notes - Chapter 4: Axon Hillock, Ion Channel, Resting Potential

• School: Western University
• Department: Psychology
• Course: Psychology 2221B
• Professor: Derek Quinlan

Document Summary

Talking about how neurons chat with each other. And a charge within a neuron is -70mv with respect to other fluids just outside the neuron. Recording the membrane potential: difference in electrical charge between inside and outside of cell. Inside of the neuron is negative with respect to the outside. With this difference in charge- refer to the membrane being polarized- if depolarized, bring those charges together and hyper is the opposite. Factors contributing to even distribution of ions (charged particles) Random motion particles tend to move down their concentration gradient. Electrostatic pressure like repels like, opposites attract. Factors contributing to uneven distribution of ions. When we were trying to figure this out, there must be forces pushing these particles. So the two main things that can push things is 1. Gradient- random motion of molecules and neurons that will cause a concentration of those particles in the environment.