Session 9: The Nervous System - Assignment #2 PhysioEx Assignment : Exercise 3 Neurophysiology of Nerve 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
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How Does The Framed Narrative Have An Effect In Ethan Frome? In the prologue‚ Wharton sets the frame for the main story. The prologue (and epilogue) take place some twenty years after the events of the main story and are written in the first person. The anonymous Narrator describes his first impressions of Ethan Frome and about how he pieced together the story of Ethan Frome from personal observation and from fragments of the story told to him by townspeople. The prologue not only introduces The
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Introduction Neurons (also known as neurons‚ nerve cells and nerve fibers) are electrically excitable and the most important cells in the nervous system that functions to process and transmit information. Neurons have a large number of extensions called dendrites. They often look likes branches or spikes extending out from the cell body. It is primarily the surfaces of the dendrites that receive chemical messages from other neurons. One extension is different from all the others‚ and is called
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disorder. They can occur in any person at any stage in their life and can be caused by anything such as bullying‚ abuse‚ family problems‚ peer pressure etc. There are many serious effects that come with suffering with bulimia. It causes damaging side effects to the body. There is not one part in the body that does not get affected by having long term bulimia. the main parts that get damaged include - Blood - anemia Heart - irregular heart beat and blood pressure Body fluids - Dehydration and
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How does sodium chloride effect the growth of Phaseolus vulgaris? [Type the document subtitle] TABLE OF CONTENTS page number 1 DESIGN 1 1.1 Defining the problem 2 * Focus / research question * Hypothesis * Background information / theory * Investigation Variables 1.2 Controlling Variables 3 * Treatment of Controlled Variables * Control Experiment 1.3 Experimental Method 4 * Materials
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Consider the importance of the characters names in Kindertransport I think that in Kindertransport the writer‚ Diane Samuels uses the names of the characters as a huge way of showing their personalities and their life’s worth. The very first character that we are introduced to is Eva‚ now this is the younger and former self of the later introduced Evelyn. The name ‘Eva’ is a Hebrew name which is biblical and means ‘life’ but also ‘God’s grace’. This is very fitting as when Eva is introduced to
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EXERCISE 3: Neurophysiology of Nerve Impulses 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
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Question 3 Using any peripheral nerve bundle as a model‚ describe using figures (a) the general anatomical structure with key constituents identified and (b) the heterogeneity in the electrical conductivities of the different constituents. For this question‚ I will be using the sciatic nerve as my model. The sciatic nerve consists of several main structures as can be seen in Figures 5 below. Figure 5: Cross section of the sciatic nerve. The inset in the top image shows individual fibers wrapped
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Optic nerve sheath diameter (ONSD) The anatomy of the optic nerve sheath : The intraorbital section of the optic nerve extends from the globe‚ where it inserts medially‚ to the optic canal located in the lesser wing of the sphenoid bone. It is encased by a meningeal sheath consisting of dura mater‚ arachnoid mater and pia mater. Cerebrospinal fluid is contained in the trabeculated subarachnoid space and is continuously and slowly filtered. As a result the optic nerve sheath is in direct
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How Does The Constitution Work and How Does it Affect You? The president is the chief executive and is charged with enforcing the laws. The heads of all the government departments report to him. He is responsible for managing the government and spending the money that congress appropriates. He is the commander in chief of the armed forces but is a civilian. He can‚ with the advice and consent of the Senate‚ negotiate treaties and appoint justices of the Supreme Court and judges of lower courts
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