Chapter 45 Hormones and the Endocrine System PowerPoint Lectures for Biology‚ Seventh Edition Lectures by Ching-wei Luo Hormone (from the Greek horman‚ to excite) • Overview: The Body’s Long-Distance Regulators • Hormone definition: a chemical signal secreted into the circulatory system and communicates regulatory messages within the body • Hormones may reach all parts of the body But only certain types of cells (target cells) are equipped to respond Q Two systems act individually
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Histology and endocrinological function of the Juxtaglomerular apparatus Abbreviations used: DCT- Distal convoluted tubule‚ JGA-Juxtaglomerular apparatus‚ MD-Macula Densa‚ TGF-tubular glomerular feedback‚ NO-Nitric Oxide‚ NOS-Nitric Oxide Synthase The nephron‚ the functional unit of the kidney‚ is made of 2 parts: the renal corpuscle and the renal tubule. The renal corpuscle is composed of the glomerulus and Bowman’s capsule while the renal tubule extends from the Bowman’s capsule to the collecting
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Introduction: • The theme of my project "The friction force in the sport." • The theme of the project‚ I chose in March when we just started to study the force of friction. • The topic seemed very interesting‚ because I already knew that the friction force is used in football. And I was curious‚ what other sports use the force of friction. • My project focuses on the Area Of Interaction "Health and Social Education." • Some of us go to sports clubs‚ or do it yourself‚ such as running in the
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point in a fluid has the same magnitude in all directions. (Pressure is a scalar) Variation of Pressure with Depth It will come as no surprise to you that pressure in a fluid at rest does not change in the horizontal direction. This can be shown easily by considering a thin horizontal layer of fluid and doing a force balance in any horizontal direction. However‚ this is not the case in the vertical direction in a gravity field. Pressure in a fluid increases with depth because more fluid rests on
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Quiz. Evaluate the following problems. Show your solution and encircle your final answer. 1. In a 25-kVA‚ 2000/200 V‚ single phase transformer‚ the iron and full load copper losses are 350 W and 400 W respectively. Calculate the efficiency at unity power factor on a) full load‚ b) half full-load. 2. If P1 and P2 be the iron and copper losses of the transformer on full load‚ find the ratio of p1 and P2 such tat maximum efficiency occurs at 75% full load. 3. A 5-kVA‚ 2300/230 V‚ 50 Hz transformer
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Chapter 6 Study Guide Fluids‚ Electrolytes‚ and Acid-Base balance Compartmental Distribution of Body Fluids 2/3 of the body’s water is contained in the ICF‚ the remaining 1/3 is in the ECF ICF fluid volume is regulated by proteins and other non-diffusible organic compounds in cells Interstitial fluids (IF) act as a transport vehicle for gasses‚ nutrients‚ wastes‚ and other materials 14%-16% of body weight Reservoir for maintenance of vascular volume; used during hemorrhage
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WHAT IS FLUID MECHANICS ? FLUIED: Any thing whose particles can move easily from one place to another that means shape can be easily changed upon the application of negligible force. MECHANICS: Study of response of bodies upon the application of force. FLUID MECHANICS : Fluid mechanics may be defined as the branch of engineering science which deal with behavior of fluids under the condition of rest and
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Li Hong‚ Desmond Wong Practical Lecturer: Mr Zoheir Practical Group: 6 Part 1 Title: To determine the coefficient of static friction between two surfaces. Objectives: 1. To determine the relationship between the mass of load and the length of spring. 2. To determine the coefficient of static friction between two surface. Apparatus and materials: 1. Retort stand 2. Spring 3. Slotted masses 200g with hanger 4. Meter rule Setup: [pic] Theory: If the
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Analysis Paper: Fluid Volume Deficit “Fluid volume is a term that describes the balancing of input and output of fluid in the body” (Welch 2010). This balance can be affected by many factors: inadequate intake‚ shock‚ vomiting‚ diarrhea‚ or too much output. It can also be caused by third spacing. Fluid volume balance is very important to monitor patients because it can affect every body system and can easily be altered. Fluid volume deficit is more commonly referred to as dehydration. Euvolamia
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patient with a fluid or electrolyte imbalance for falls‚ especially older adults. 2 Use safety precautions to prevent injury or death when administering parenteral potassium-containing solutions. 3 Supervise the oral fluid therapy and intake and output measurement aspects of care delegated to unlicensed assistive personnel. Health Promotion and Maintenance 4 Teach healthy adults and patients how to prevent dehydration. 5 Assess patients for factors that increase the risk for fluid and electrolyte
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