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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Exercise 3: Neurophysiology of Nerve Impulses: Activity 3: The Action Potential: Threshold Lab Report Pre-lab Quiz Results You scored 25% by answering 1 out of 4 questions correctly. 1. Axons are You correctly answered: d. long‚ thin structures that extend from a neuronal cell body. 2. Which of the following is easier? Your answer : b. intracellular recordings of the action potential Correct answer: a. extracellular recordings of the action potential 3. An action potential is usually initiated in
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Points received: (Do not fill out. Follensbee use ONLY) DR. PHILLIPS VPA DANCE MAGNET CONTRACT LEVEL 3 1. Healthy Body: (See attachment; Data Sheet attached) 2. Weekly Studio Dance Training: I take multiple dance classes at Momentum Dance Live and Kelli Dorrough has filled out my studio evaluation. 3. Reading: * Victoria’s Story * Officer Notes 4. Additional Dance-Related Learning Experiences: * Momentum’s Student Choreography Showcase 5.
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LE IN The article is organized as follows. We begin by reviewing the reference literature before introducing the concept and practice of dynamic sector rotation. We then present our experiment: to apply a number of heuristic techniques of sector momentum to a fully invested portfolio of sector-specific investments (41 funds of the Fidelity Select Sector family‚ for which we have data). We first present the empirical results obtained using alternative measures of relative strength (rate of change
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CONSERVATION OF MOMENTUM PRACTICAL WRITE UP AIM: To investigate if momentum is conserved in two-dimensional interactions within an isolated system. HYPOTHESIS: Without the effects of friction the momentum will be conserved in the isolated system. In all three experiments the momentum before the interaction will equal the momentum after the interaction. METHOD: An air hockey table was set up and a video camera on a tripod was placed over the air hockey table. The camera was positioned so it was
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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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Engr 4132 Biomedical Engineering Lab Dr. Gang Xu Lab #9: ECG & Pulse Mechanical Action of the Heart Peripheral Pressure Pulse Plethysmography By: Abigail Magee Partners: Lauren Tinnin Nick Walker Date: 11/05/2015 Introduction: The heart goes through a cardiac cycle in order to pump blood throughout the body. This cycle is started by electrical activity that can be measured by an electrocardiogram. As the heart contracts‚ it pumps blood into the next section of the cardiac
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Exercise 3: Neurophysiology of Nerve Impulses Worksheet Assignment Due: Week 4 Eliciting a Nerve Impulse Activity 1: Electrical Stimulation 1. Do you see any kind of response on the oscilloscope screen? No 2. What was the threshold voltage‚ or the voltage at which you first saw an action potential? The threshold voltage is at 3.0 V. 3. How does this tracing compare to the one that was generated at the threshold voltage? There was a slight increase. 4. What reason can you
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Maya Angelou was born on April 4‚ 1928‚ in St. Louis‚ Missouri‚ and she was a writer and civil rights activist known for her 1969 memoir‚ I Know Why the Caged Bird. For Maya‚ her poem made literary history as the first nonfiction best-seller by an African-American woman. The poignant work also made Angelou an international star.In 1971‚ Angelou published the Pulitzer Prize-nominated poetry collection Just Give Me a Cool Drink of Water Fore I Die. She later wrote the poem "On the Pulse of Morning"—one
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STAGE 2 PHYSICS Assessment Type 1: Investigation Folio Practical Investigation 2: Momentum Purpose: To investigate the relationship between the laws of conservation of momentum and Newton’s Third Law and another variable of your choice for a 2D collision of two objects. Materials: Hover puck Video Recorder Tripod Masking tape Ruler Tracker (Computer Program) Method: On a flat surface containing no obstacles‚ prepare the tripod and camera over the selected area that the
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