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Excitable Tissues- Nerve Prof. K. Sivapalan
Neuron June 2013Nerve2
Membrane Potential June 2013Nerve3
Recording Electrical Events- Oscilloscope June 2013Nerve4
Basis of Resting Membrane Potential:Gibbs–Donnan effect June 2013Nerve5
Physics of Membrane Potential June 2013Nerve6
EMF with Many Ions June 2013Nerve7
Role of Sodium Potassium Pump June 2013Nerve8
Genesis of Resting Membrane Potential June 2013Nerve9
Change in Resting Membrane Potential June 2013Nerve10
Local Response June 2013Nerve11
Action Potential June 2013Nerve12
Ionic Basis of Action Potential June 2013Nerve14
Components of Action Potential June 2013Nerve16
Spread of Action Potential June 2013Nerve17
Spread of Action Potential June 2013Nerve18
Conduction in Myelinated Nerve June 2013Nerve19
Myelination June 2013Nerve20
Velocity of Conduction June 2013Nerve21
Fiber Types in Mammalian Nerve June 2013Nerve22
Susceptibility of Nerves Susceptible to: MostIntermediateLeast HypoxiaBAC PressureABC Local anaesthetics CBA June 2013Nerve23
Excitable Tissues- Nerve Prof. K. Sivapalan. Neuron June 2013Nerve2.
Excitable Tissues- Synapse Prof. K. Sivapalan. Synapses June 2013Synapse2.
Learning Objectives Students should be able to: Define resting membrane potential and how it is generated. Relate Nernst Equilibrium potential for sodium,
6.5 Neurons and Synapses U1: Neurons transmit electrical signals.
Neurones & the Action Potential Neurones conduct impulses from one part of the body to another.
Passage of an action potential Aim: To understand how nerve impulses are propagated along a neurone.
Action & Resting Potentials. Create the electrical impulses needed for communication in the nervous system They occur in the axons of all neurones.
NEUROMUSCULAR JUNCTION & NERVE IMPULSES. Characteristics of Muscle Tissue 1)Irritability: ability to respond to a stimulus 2)Contractility: ability to.
Nerve Impulse. A nerve impulse is an impulse from another nerve or a stimulus from a nerve receptor. A nerve impulse causes: The permeability of the.
Dr.Sidra Qaiser. Learning Objectives Students should be able to: Define resting membrane potential and how it is generated. Relate Nernst Equilibrium.
Cardiac Muscle Prof. K. Sivapalan. June 2013 Properties of cardiac muscle. Branching cells with central nucleous. Separated by intercalated discs – tight.
Heart –Electrical Properties Prof. K. Sivapalan Electrical Properties 2 Introduction. Function of the blood is transport of substances. Function.
Bellringer: Water Intoxication What is hyponatremia? Symptoms? What is brain edema? What can it lead to? What is vasopressin and what does it do?
Nerve Action potential L 21. Learning objectives Learning objectives Genesis of nerve action potential Genesis of nerve action potential Potential changes,
Nervous System Group 1 Abbey Mui, Charlotte Fletcher, Jake Morrissey, Elise DeFazio.
Fifth lecture Sodium and potassium pump Na + & K + pump Na+ ions are not allowed to accumulate inside the nerve cell and pumped outside by an active.
Nerve Impulses. Resting Potentials Electrical potential across plasma membrane of a cell Not conducting impulse.
Outline Neuronal excitability Nature of neuronal electrical signals Convey information over distances Convey information to other cells via synapses Signals.
Unit 1 Opener. Figure 2.1 Types of neuronal electrical signals.
Nervous System. Neuron (nerve cell) StructureFunction Cell BodyCentral part of the neuron. It contains the nucleus of the cell. where most protein.
The Action Potential Objective: To understand how neurones conduct impulses from one part of the body to another. What is this part of the nervous system.
Resting Membrane Potential. Membrane Potentials Electrical signals are the basis for processing information and neuronal response The impulses are.
The Action Potential & Impulse/Signal Propagation Learning Objective To know the sequence of events that occurs during an Action Potential. To link the.
Dentistry 071 EXCITABLE TISSUES: Nerve And Muscle BY: DR. MAHA HEGAZI, Associate Professor Of Physiology.
Psychology 3600 Action Potential Saltatory Conduction Ion Channels Membrane Currents.
The Action Potential. Four Signals Within the Neuron Input signal – occurs at sensor or at points where dendrites are touched by other neurons. Integration.
Neurones & the Action Potential Objective: To understand how neurones conduct impulses from one part of the body to another. Write down anything you can.
AP Biology Nervous Systems Part 3. Synapse and Neurotransmitter.
Chapter 35-1: Human Body Systems Essential Question: How does the human body maintain homeostasis?
6.5 Neurons and synapses Neurons transmit the message, synapses modulate the message.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Fundamentals of Anatomy & Physiology SIXTH EDITION Chapter 12, part 2 Neural.
April The Neuron & Nerve Impulses. Two Types Neurons ◦ Nerve impulse conduction ◦ AP (action potential) Neuroglia ◦ Support & nourish neurons.
Neurones Dendrites Axon Facilitated diffusion Schwann cells Active transport Myelin Na + /K + pump Synapse.
The Action Potential. The Resting Potential of the Neuron results from difference in ion distribution inside and outside of cell (-70mV)
Propagation of the Action Potential The Central Dogma Of Excitable Tissues.
Resting Membrane potentialResting Membrane potential At rest, all cells are negatively charged On inside with respect to charge on exterior.
Neurophysiology. Membrane Potential How is the Resting Membrane Potential Changed?
Write a short paragraph describing the process and purpose of myelination. Explain how myelination changes during development & how it relates to learning.
Physiology of The Nerve Week 4 Dr. Walid Daoud A. Professor.
The Neuron Functions of the nervous system Two parts to the nervous system: Peripheral nervous system – nerves and supporting cells that collects.
Fundamentals of Human Neuropsychology Sixth Edition Chapter 4: The Structure and Electrical Activity of Neurons Copyright © 2008 by Worth Publishers Bryan.
Action Potential (L4). 2 Neurons are electrically excitable due to the voltage difference across their membrane Neurons are electrically excitable due.
- The central nervous system consists of the brain and the spinal cord - sensory information is received by them and interpreted and then processed (responded.
Figure 48.1 Overview of a vertebrate nervous system.
GRADED POTENTIAL & ACTION POTENTIAL Dr.Mohammed Sharique Ahmed Quadri Assistant prof. Physiology Al Maarefa College.
NERVE PHYSIOLOGY Ass. Prof. Dr. Emre Hamurtekin EMU Faculty of Pharmacy.
Neurophysiology Conduction, transmission and integration of neural signals Chapter 3.
Nervous System Electrical Conduction & Impulse to Control Body Function.
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