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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cardiac action potential differs significantly in different portions of the heart. The heart is provided with a special excitatory system and a contractile system necessary to perform this function. This differentiation of the action potentials allows the different electrical characteristics of the different portions of the heart. For instance‚ the specialized excitatory system of the heart has the special property of depolarizing without any external influence with a slow‚ positive increase in voltage
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REVIEW SHEET EXERCISE 3 Neurophysiology of Nerve Impulses NAME: 1. Match each of the definitions in Column A with the appropriate term in Column B. Column A Column B __D__ term that refers to a membrane potential of about -70 mv __F__ reversal of membrane potential due to influx of sodium ions __B__ major cation found outside of a cell __A__ minimal stimulus needed to elicit an action potential __E__ period when cell membrane is totally insensitive to additional stimuli‚ regardless
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Unit 9. Exercise 1. Light Sources and Components – Definitions 1. Forward Biased LED – Semiconductor diode with a positive voltage applied to the p-region and a negative voltage to the n-region. 2. Incoherent Light – Light in which the electric and magnetic fields of photons are completely random in orientation. Incoherent light is typically emitted from light bulbs and LEDs. 3. Laser – Acronym for light amplification by stimulated emission of radiation. The laser produces a coherent source
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Chapter 2 : Circulatory system Focus: Plants transport systems Water and mineral uptake Xylem and transport Phloem‚ sugar and translocation Keong BP An overview of plant transport system Keong BP Water and minerals uptake 1. Bulk Flow Transport via Xylem. 2. Transport of Water and Minerals into Xylem. 3. Absorption of Water and Minerals by Root Cells Keong BP 3. Absorption of Water and Minerals by Root Cells Keong BP Water and mineral uptake by the root hairs through
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|Chapter 44 | | | |Management of Patient with Renal Disorders | | | | | | | |Submitted by: | |Inac‚ Sarah Gaile T.
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The Physiology of Fitness Acute/ Short term effects of exercise Task… In 4 equal groups‚ each group will be assigned a system to research. You need to make sure your group researches your particular area thoroughly and covers the following responses depending on what system has been assigned. Your group will then present back the findings to the rest of the group through a detailed and informative A3 poster. • Musculoskeletal response: increased blood supply; increase in muscle pliability; increased
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Unit 2: Physiology Lab Skeletal Muscle Physiology Student Name: Lab Summary Worksheet Directions: Read the following directions before starting the lab. Before starting each lab Activity‚ read the Overview and Introduction. This information will help you understand what you are doing in the lab. You do not have to pdf your lab – the only thing that you will submit for grading is this lab report. You will have to answer the Stop and Think Questions that are embedded in the lab instructions
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complaining of severe left flank pain. He is in extreme distress‚ is very pale and is complaining that the pain is making him want to vomit. The examining physician suspects that he has renal calculi. How do renal calculi form‚ how are they diagnosed and what complications might arise if Mr Jagger remains untreated? Renal calculi‚ also known as kidney stones‚ occur when glomerular filtrate passes through the nephron‚ where urine is concentrated with stone-forming salts (Bagga et Al.‚ 2013). Ions in
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all U.S. citizens. 2) The costs for health care coverage would be reduced. 3) The health care system would become more efficient. A universal health care plan would provide Health Care coverage for all U.S. citizens. The current health care system does not cover a large portion of the U.S. population. Many U.S. citizens cannot afford to obtain health care‚ or they are excluded from the health care system for some other reason. This creates a gap between those Americans that have health care coverage
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