PSY 430 Lecture Notes - Lecture 4: Myelin, Inotrope, Neural Coding
Document Summary
D: pore proteins that transverse the membrane and are selective to only certain ions to transverse that pore. Also generate currents that travel across which can summate to form an action potential. Contain different gating mechanisms (chemical, voltage, mechanical, ligand, stretch- activated) I: channels that allow for ions to cross the membrane due to activation from a certain mechanism. M: relates to how ions are allowed to cross the membrane or how certain ion channels within the body are activated by certain ion channels. E: voltage gated ion channels are related with action potentials. D: three factors of ion currents that can in uence the shape of an ap: Strength of input current: which means a weak current has little effect on an ap. Timing of current activation: meaning a fast activating k+ current will shorten an ap. Duration of current activity: a short current may shorten an ap.
