A Quantitative Approach to Bioelectricity Learn more

What is Bioelectricity?
Bioelectricity refers to electric potentials or currents produced by or occurring within tissues, nerves and muscles of living organisms. A number of biological processes are involved in generation of these bioelectric potentials, which generally range in strength from one millivolt to several hundred millivolts. Electric eel is an exception as it has the ability to generate electric currents of one ampere at 600 to 1,000 volts.
Who should take this course?
This course presents fundamental principles of bioelectricity and starts at the beginning so no prerequisite courses are required. Anyone interested in studying the science of biological electric currents can take this course.
What are the benefits of this course?
In this free online course you will get to learn how to think about bioelectricity being produced in tissues and muscles in terms of individual mechanisms. The course will use examples used by Nobel laurels Hodgkin and Huxley to explain the mechanisms of the nerve axon of the giant squid and its function. At the end of the course you will have a better understanding of electrically active tissue, whether in nerves, the brain or in muscle, including the heart. You will also able to analyze these individual mechanisms both quantitatively and qualitatively. The best thing that you will learn in this class is how to use battery in salt water for 100 years, and yet never discharge.
Table of Contents:
- The topics that will be covered in this course include:
- Electricity in living tissue, “animal electricity," Galvani and Volta
- Voltages, currents and sources in solutions. 
- Electrically active membranes and their resistance and capacitance
- Diffusion and fields across membranes, Nernst equilibrium
- Ion channels
- Action potentials
- Impulse propagation, current along the fibre
- Electrical stimulation
- Extracellular fields  1,2
- Extracellular wave forms
- Transmembrane stimulation
- Field stimulation
Author Bio:
Dr. Roger Barr is an Anderson-Rupp Professor of Biomedical Engineering and Associate Professor of Pediatrics at the Duke University.

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