Topic 6.5 - Nerves. 6.5.1 Overview of the Nervous System Three major functions: Sensory input – sensory receptors receive signal – peripheral nervous.
Lectures 1,2,3 Rachel A. Kaplan and Elbert Heng 2.3.14.
Melvin Bae 2nd Faculty of medicine 2014. Basic principles Ion flux; driven by force of diffusion and/ or electrostatic forces Ions diffuse through.
1 1 The Major Senses zThere are 6 major senses yvision yhearing ytouch ytaste ypain ysmell zThe list can be extended with balance, joint senses and others.
The two functional divisions of the peripheral nervous system are the afferent and efferent divisions. What are their respective functions? 1.Control of.
Signal transmission at synapses Alice Skoumalová.
Copyright © 2010 Pearson Education, Inc. Neurotransmitter Actions Direct action Neurotransmitter binds to channel-linked receptor and opens ion channels.
Electrochemical Potentials A. Factors responsible 1. ion concentration gradients on either side of the membrane - maintained by active transport.
Membrane potential Resting potential Action potential.
Local Potential (“Passive” Depolarization) Depolarization to Threshold depolarization produced by the stimulusdepolarization produced by the stimulus chemical,
C. Establishes an equilibrium potential for a particular ion based on Donnan equilibrium.
Overview Course introduction Neural Processing: Basic Issues Neural Communication: Basics Vision, Motor Control: Models.