KINESIOL 1A03 Study Guide - Final Guide: Resting Potential, Axon Hillock, Lipid Bilayer

• School: McMaster University
• Department: Kinesiology
• Course: KINESIOL 1A03
• Professor: Maureen Mac Donald

Document Summary

Nervous tissue and muscle are electrically excitable tissue that produce signals that can travel. Difference in charge across a membrane (pos or neg on either side) creates membrane potential. Phospholipid bilayer stops ions and other molecules from freely moving through membrane. Proteins embedded within membrane act as a channel or a pore for molecules to transfer through every tissue in body has phospholipid bilayer but not all are electrically excitable except in nervous tissue. Transfer of info from one part of body to another. Electrical properties result from ionic concentration differences across plasma membrane and permeability of membrane. Across the membrane, create a concentration gradient using charged ions. Sets up an electrical gradient , like charges repel and unlike attract; cation = pos, anion = neg. Separation of charge = potential diff; membrane separates charges which creates an enviro where ions want to come back together . Inside of cell is more neg, outside is more pos.