What is an Affirmative Action Program? It is a law‚ program or activity that changes the conditions for any race with a disadvantage in society. Affirmative action strives for diversity in many sectors of the work world‚ education and society. What is the issue? Discrimination is intentional or unintentional bullying to a person of different race‚ sex‚ religion‚ etc... that causes hurt or harm to the individual. The fact that somebody speaks differently or is a different colour does not come
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Impulses Activity 1: The Resting Membrane Potential 1. Explain why increasing extracellular K+ reduces the net diffusion of K+ out of the neuron through the K+ leak channels. Increasing the extracellular K+ causes the membrane potential to change to a less negative value because when K+ ions diffuse out across the membrane they are leaving behind a net negative charge. 2. Explain why increasing extracellular K+ causes the membrane potential to change to a less negative value. Potassium
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“A Civil Action” by Jonathan Harr What is the difference between a criminal and a civil case? Criminal cases require that a verdict be made without a “shadow of doubt‚” but in civil cases that is not the case. Professor Nesson in “A Civil Action” states that civil cases only need around 51 percent to determine liability. This book was a very interesting read because it takes us through the different parts of a civil trial and how the case even got started. It is especially important to consider
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Neurophysiology Study Guide 1. Define "equilibrium potential". Why is the resting potential closer to the potassium equilibrium potential (EK+) than the sodium potential (ENa+)? The equilibrium potential is the point at which the force exerted on an ion by electrostatic and concentration gradient forces are balanced‚ and there is no net movement of that ion. The resting potential is closer to EK+ than ENa+ because the cell membrane is more permeable to
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ACTIVITY 1: The Resting Membrane Potential Answers 1. The nervous system contains two general types of cells: neuroglia cells and a. nerves. b. cell bodies. c. neurons. d. nephrons. 2. The resting membrane potential of the neuron in this lab under the control conditions was _______ mV. 3. True or False: For most neurons‚ the concentration of Na+ and K+ ions inside and outside the cell are the primary factors that determine the resting membrane potential. 4. Explain why increasing the
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Eliciting (Generating) a Nerve Impulse 1. Why don’t the terms depolarization and action potential mean the same thing? Depolarization has to do with surfaces becoming more negative or positive and reaches a certain point called a threshold. When the threshold is reached‚ an action potential is initiated. 2. What was the threshold voltage in Activity 1? The threshold voltage in Activity 1 was 3.0. 3. What was the effect of increasing the voltage? How does this change correlate to changes
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Contribution of Nav1.8 Sodium Channels to Action Potential Electrogenesis in DRG Neurons J Neurophysiol 86:629-640‚ 2001. ; You might find this additional info useful... This article cites 38 articles‚ 24 of which you can access for free at: http://jn.physiology.org/content/86/2/629.full#ref-list-1 This article has been cited by 68 other HighWire-hosted articles: http://jn.physiology.org/content/86/2/629#cited-by Updated information and services including high resolution figures‚ can be found at:
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to and/or from the CNS and visceral organs or structures of the body periphery (Marieb & Mitchell‚ 2009). In this experiment we will work with a nerve The action potential we will see on this experiment reflects the cumulative action potentials of all the neurons in the nerve‚ called a compound nerve action potential. Although an action potential follows the all-or none law within a single neuron‚ it does not necessarily follows the all-or-none law within an entire nerve. When you electrically stimulate
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ACTIVITY 1: THE RESTING MEMBRANE POTENTIAL 1. Explain why increasing extracellular K+ reduces the net diffusion of K+ out the neuron through the K+ leak channels? When the diffusion is greater on one side‚ the other side will slow down. 2. Explain why increasing extracellular K+ causes the membrane potential to change to a less negative value. How well did the results compare with your predictions? There are two potassium’s for every sodium so the increase of potassium will make it more
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Impulse • Investigate what kinds of stimuli stimulate action potential. II. Activity 8: Nerve Conduction Velocity • Determine and compare the conduction velocities of different types of nerves. B. Introduction I. Activity 1-4: Eliciting a Nerve Impulse • In this experiment‚ we will be investigating what stimulates action potential on the nerve being tested on the oscillator. The factors that helped determine action potential are voltage‚ single stimulus‚ Hydrochloric acid‚ sodium
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