EXERCISE 9: RENAL SYSTEM PHYSIOLOGY 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. Exercise9_JohnSmith.doc. Please make sure that your answers are typed in RED. (You may delete these instructions before submission.) Grading:
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GENERAL PRINCIPLES OF DISORDERS OF WATER BALANCE (HYPONATREMIA AND HYPERNATREMIA) AND SODIUM BALANCE (HYPOVOLEMIA AND EDEMA) Literature review current through: Sep 2013. | This topic last updated: ene 15‚ 2013. 1. INTRODUCTION — The plasma sodium concentration is regulated by changes in water intake and excretion‚ not by changes in sodium balance. hyponatremia is primarily due to the intake of water that cannot be excreted hypernatremia is primarily due to the loss of water that has not
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The Roles of the Nephron of the 120 ml of blood that is filtered by the kidneys each minute‚ only I ml (that’s less than I%) turns into urine that will eventually leave the body (after approximately 300 - 400 mis of it accumulates to fill the bladder!) That leaves 119 ml of fluid called filtrate to be returned back to the blood stream. Good thing‚ otherwise you would have to micturate (pee‚ urinate) once every 3 minutes and drink 1 L of fluid every 10 minutes in order to maintain Homeostasis!!! The
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certain industrial workers. This condition may develop following excessive sweating or as a result of prolonged water deprivation accompanied by continued water output. In either case‚ as water lost‚ the extracellular fluid becomes increasing more concentrated and water tends to leave cell by osmosis. Dehydration may also accompany illness in which prolonged vomiting or diarrhea depletes body fluids. During dehydration‚ the skin and mucous membranes of the mouth feel dry‚ and body weight drops. Severe
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5-1.0%‚ the thirst mechanism asserts itself. Approximately 55% of water intake is derived directly from fluids‚ 35% from food‚ and 10% from water produced as a byproduct of metabolism. Water Output Kidneys excrete approximately 1 to 2 liters of urine per day. Approximately 900 milliliters (ml) of this amount is obligatory water excretion that gets rid of solutes and is constant from day to day. The remainder is excreted according to the fluctuating needs of the body and the changing renal tubular
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is properly hydrated. Water helps to replenish skin tissues‚ moisturizes skin and increases skin elasticity. Better Productivity at Work: Your brain is mostly made up of water‚ thus drinking water helps you think better‚ be more alert and more concentrated. Better Exercise: Drinking water regulates your body temperature. That means you’ll feel more energetic when doing exercises. Water also helps to fuel your muscle. Helps in Digestion and Constipation: Drinking water raises your metabolism
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HOMEOSTASIS GROUP 5 RESEARCHERS MUNASHE MUDUMISO R136670X TAWANDA CHIKUKUZA R136602Y JOHN MTINIWA R136553H LEARNMORE SHOTI R136619N WELLINGTON CHIPADZE R113616B MASIMBA Homeostasis is the ability to maintain a stable internal body environment in an ever changing outside world. It can also be said to be the body’s attempt to maintain a relatively constant internal environment in the face of constantly
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The Relationship Between The Nervous System and The Endocrine System The cells and tissues in the body are delicate and easily disrupted. They will only be able to function well if all aspects of their chemical and physical environment is continuously adjusted to keep them stable and in equilibrium. The process in which several body systems work together to maintain the balanced environment is called homeostasis. The endocrine and nervous system work closely together to help maintain homeostasis
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the afferent arteriole and efferent arteriole were set at 0.45mm‚ the GFR was approximately ______ ml/minute. a. 40 b. 60 c. 80 d. 120 C. 3. True or False: Drinking a lot of caffeine (coffee or cola) leads to an increased urine volume. This might result from a decrease in the radius of the efferent arteriole. True 4. What are two primary functions of the kidney? Excretion-filters water and solutes in the blood‚ the kidneys are able to excrete excess water Regulation-
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experiencing central diabetes insipidus‚ the production of ADH is too low to stop the kidneys from passing dilute urine. This result in an increased loss of water and the person become more thirst (News Medical). For people who experiencing nephrogenic diabetes insipidus‚ however‚ have adequate amounts of ADH in the body but the kidneys fail to respond and again the urine is still not concentrated (News Medical). Stroke or sudden loss of oxygen to the brain is one of the causes of central diabetes insipidus
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