PPT-RESTING MEMBRANE POTENTIAL

By Dr Ayisha Qureshi Assistant Professor Physiology MBBS MPhil OBJECTIVES By the end of this lecture you should be able to Define Nernst potential Use the Nernst equation to calculate the values of Nernst potential for Na K amp Cl. 2nd. practice. Medical Informatics. Biomedical Signal Processing. TAMUS, Zoltán Ádám. zoltanadam_tamus@yahoo.com. Examples of Biomedical Signals. Action potential. Electroneurogram (ENG). Electromyogram (EMG). and . Resting Membrane Potential. Part 2. . . Action potential. Action Potential . An . action potential. can be thought of as the “firing” of the neuron.. Action potentials will . propagate . down the length of a neuron’s axon. Tidbit Title: Understanding membrane potentia. l. Facilitators:. Thomas Torello, Harvard University . Cynthia Wagner, UMBC. Howard Sirotkin, Abhay Deshpande: Stony Brook University. Thomas Abbott, Kristen Kimball: UCONN. Understanding:. Neurons transmit electrical impulses. The myelination of nerve fibers allows for salutatory conduction. Neurons pump sodium and potassium ions across their membranes to generate a resting potential . 11.4 Membrane Potentials. Like all cells, neurons have a . resting membrane potential. Unlike most other cells, neurons can rapidly change resting membrane potential. Neurons are highly excitable. © 2016 Pearson Education, Inc.. By. Dr. . Ayisha. . Qureshi. Assistant Professor, Physiology. MBBS, MPhil. OBJECTIVES. By the end of this lecture, you should be able to:. Define Nernst potential . Use the Nernst equation to calculate the values of Nernst potential for Na, K & Cl. To understand what a . resting potential . is.. To understand how a . resting potential . is established in a neurone.. To understand what an . action potential . is.. Welcome to Hell… Population = You. with emphasis on nerve action. Mike Clark, M.D.. Principles of Electricity . Opposite charges attract each other. Energy is required to separate opposite charges across a membrane. Energy is liberated when the charges move toward one another. HONORS ANATOMY & PHYSIOLOGY. Key terms. action potential. : A short-term change in the electrical potential that travels along a cell (such as a nerve or muscle fiber); the basis of neural communication. Section 3-2 Chapter 7. Phospholipid Bilayer. The membrane is composed of two layers of phospholipids . Phospholipids are . ampipathic. . Hydrophobic tail. Hydrophyllic. head. Selectively Permeable. Dr.Viral. I. Champaneri. , MD. Assistant Professor. Department of Physiology. 1. Learning Objectives. Stages of Action Potential . Repolarization. Positive . afterpotential. After . hyperpolarization. logical Basis of Behavior. jp-rosenfeld@northwestern.edu. We study how the brain makes mind and behavior. METHODS (in oversimplification terms):. 1.. Lesions. (Ablation): Oldest Method; 2 ways:. a) Natural: Take them as they come (bullet holes, tumors; “Neuropsychology”.) . Dept of . Zoology,MRGC. , . OBJECTIVES:. TO STUDY. ............ TYPES OF NEURONS. FUNCTIONS OF NERVOUS SYSTEM. IMPORTANT TERMS. PHYSIOLOGY OF NERVE IMPULSE. 3. rd. Semester Zoology (Major)-CC IV: Controlling and Coordinating System :Nervous system: Physiology of nerve impulse conduction. Cell body —> 5 - 7 dendrites —> Long, fibrous axon —> divides into terminal branches —> each ends in a terminal knob. . Myelin sheaths - formed by Oligodendrocytes . 4 zones to a nerve fiber .