PHYSIO EX 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. The temperature of the solutions and the difference in concentration of the ion or molecule between the sides of the membrane 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? Since the chemical formula for urea is (NH2)2CO and its molecular weight is about 60. It will not diffuse through the
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THE ROLE OF EXERCISE IN THE MANAGEMENT OF CARDIOVASCULAR DISEASE Cardiovascular disease (CVD) is the term used to describe the diseases affecting the heart‚ arteries and blood vessels. Coronary heart disease (CHD) is a leading public health problem in the UK with costs exceeding £30 billion per year. Mortality rates from the disease continue to fall‚ mainly due to a combination of public awareness of the risk factors and understanding of the need to lead a healthier life. However
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line then jumped back to normal and then flat lined again it continue to follow this trace continuously. 7. What part of the trace shows the refractory period? The atrial contraction is the part of the trace that shows the refractory period 8. Does summation occur? No summation 9. Why is it important that summation not occur in heart muscle? Summation would increase the Heart muscle contractions which would lead to heart attack. Activity 2: Vagus Nerve Stimulation 1. Describe
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Beginning at 40 seconds‚ with the pH at 7.52‚ respiratory alkalosis occurred. 7. Did the PCO2 level change during the course of this run? If so‚ how? Yes the PCO2 levels did fluctuate over the course of this run decreased from 40mm Hg to 19.7mm Hg 8. If you observed an acid/base imbalance during this run‚ how would you expect to renal system to compensate for this condition? Renal compensation for alkalosis means the kidneys will correct the basic conditions by increasing H+ absorption and by increasing
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hyperventilate. The rising pH indicated that the body was expelling CO2 and H+. 7. Did the PCO2 level change during the curse of this run? If so‚ how? Yes‚ the PCO2 level dropped from 40 to 19.7 because the body was getting rid of CO2 by hyperventilating. 8. If you observed an acid/base imbalance during this run‚ how would you expect to renal system to compensate for this condition? The renal system would generate H+ and excrete HCO3- to counteract the respiratory system and lower the pH back to homeostasis
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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? 3.0 V 3. How does this tracing compare to the one that was generated at the threshold voltage? The tracing travel in the same fashion but the tracing were different with an increase threshold voltage 4. What reason can you give for the change? Increase voltage 5. Record this maximal voltage here:
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10/1/2012 CORPORATE FINANCE FIN 3313.01 Fall 2012 1st MID-TERM SINAN YILDIRIM NAME (Each Multiple choice question is worth 4 points) 1. The goal of financial management is to increase the: a. future value of the firm ’s total equity. b. book value of equity. c. dividends paid per share. d. current market value per share. e. number of shares outstanding‚ thereby increasing the market value of equity. 2. A corporation: A. is ultimately controlled by its board of
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EXERCISE 2: Skeletal Muscle Physiology Student Name: Student ID#: Student instructions: Follow the step-by-step instructions for this exercise found in your lab manual and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Rename this document to include your first and last name prior to submitting‚ e.g. Exercise2_JohnSmith.doc. Please make sure that your answers are typed in RED. (You may delete these instructions
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Assignment 1. 1. Summarise the main development of a child from the age range 0-2 years‚ 3-5 years and 5-8 years. 0-2 Years Newborn babies grow extremely quickly. During ‘Infancy’‚ which lasts from birth to eighteen months‚ babies change from a helpless newborn‚ to a child who can lift up their own head at three months‚ sit up unsupported at six months‚ walk at sixteen months and kick and throw a ball at two years old. Newborn babies actually lose some of their birth weight to begin with
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rod. 5. Describe the types of stimuli that generated an action potential. The different stimuli that generate an action potential are electrical‚ chemical‚ mechanical‚ and thermal. 6. If you were to spend a lot of time studying nerve physiology in the laboratory‚ what type of stimulus would you use and why? I would use chemical stimulation. I would want to see what different chemicals would cause an action potential versus chemicals that would not cause an action potential. And‚ whether
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