PSY 1101 Lecture : 4th lecture.docx

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Gary Capstick

Document Summary

Neurons: brain cells or nerve cells (other ways neurons are referred to, anatomy connection between neurons. Cell body (soma): what powers the cell. Dendrites: add surface area to the cell body so there"s more room for a. Axon: the message will travel down through the axon. Terminal branches (terminal buttons): end of axon, they branch off. Action potential you an idea of the direction it travels. : name for the electrical current that travels through the axon. Gives atoms/partical: electrical signal that travels down the axon; carried by ions (charged, signal transmitted along the axon by the diffusion of charged atoms, this membrane is semi-permeable(some things can pass through and some can"t) Series of channel openings along the axon that allows the diffusion. Inside of the cell is negatively charged, compared to the outside of the cell. Electrical potential; potential energy, as soon as you open that portal you.