Chapter 4 Exchange Background e-Learning Objectives Exchange surfaces All of the cells in your body need constant supplies of oxygen and nutrients‚ and need to get rid of waste materials‚ such as carbon dioxide‚ that are produced in their metabolic reactions. These substances are obtained from‚ or released to‚ the external environment‚ through your body’s surface. Cells and organisms have problems of scale to solve as they get bigger. As an organism gets Cube with 1 cm sides bigger‚ both its
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THE SENSES Hilgard morgan and Sartain explain that there are more than eight senses that we use to explore and learn about the world.Each of these senses has a specific sense organ within which are receptor cells or receiving mechanisms that are sensitive to certain stimuli in the environment. The Eye Is the organ of vision‚ is sometimes compared to a camera lens because it works roughly the same way as the latter which focuses images of objects at various distances o the film as it
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Integumentary System Laszlo Vass‚ Ed.D. Version 42-0280-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor
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the bacteria is destroyed by lysozyme 7) What keeps the food that we swallow from going down our ‘windpipes’? The epiglottis covers the trachea 8) What type of epithelial tissue lines the nose? Ciliated pseudostratified epithelium The trachea – stratified squamous epithelium The alveoli? Smooth muscle or simple squamous? 9) Oxygen needs hemoglobin to travel through the cardiovascular system. Why? Because oxygen binds to the iron containing protein in red blood cells while the remainder of the
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Alimentary System 1.1 – The burden of GI diseases • List the names of the organs of the alimentary tract • Mouth and Oesophagus • Stomach • Liver • Biliary system • Pancreas • Small intestine (consisting of duodenum‚ jejunum and ileum) • Large intestine (consisting of colon‚ rectum and anus) • Describe the symptoms and signs of alimentary tract disease Symptoms: General: • Anorexia • Weight loss • Anaemia
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CHAPTER 12: MOLLUSCA Mollusca is an enormous taxon 2nd only to Arthropoda in number of living species Includes many familiar animals such as snails‚ clams‚ oysters‚ mussels‚ slugs‚ octopods and squids in seven lining classes Mollusca includes the taxa: Aplacophora consists of small‚ wormlike molluscs w/ numerous calcareous spicules rather than a shell. Polyplacophorans or chitons have eight shell plates Monoplacophorans have a low‚ conical‚ limpetlike shell and live in deep water
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Dry AMD is the more common of the two types‚ occurring roughly 80-90% of the time. The hallmark sign of dry AMD is the appearance of drusen. These are whitish-yellow lipid deposits on the macula. These deposits can lift the retinal pigmented epithelium away from the choroidal circulation‚ causing it to deteriorate (Redmond &While 2008). Dry AMD can progress to the wet form‚ which occurs in 10-20% of
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Integumentary System Laszlo Vass‚ Ed.D. Version 42-0280-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this
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The Incredible Human Body Jennifer Perez HS130 Professor Rice Kaplan University Hello folks and welcome to the tour of a lifetime! We are going to be seeing many incredible sights today so buckle up and enjoy the ride. We begin our journey in the femoral artery of this extremely fit female subject‚ Miss Waters. (Be sure to thank her when the ride has come to an end.) Okay‚ here go. The femoral artery is very large in size and is located in the inner part of the thigh. A femoral artery can
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MEDICAL IMMUNOLOGY & SEROLOGY Terence L. Eday‚ RMT‚ MT(ASCPi)‚ MPH College of Medical Technology / Medical Laboratory Science University of Perpetual Help System DALTA Historical Perspective • 1773‚ Voltaire reported on an ancient Chinese custom where dried and powdered small pox scabs were inhaled • 1798‚ Edward Anthony Jenner‚ Smallpox vaccination • 1862‚ Ernst Haekel‚ Recognition of phagocytosis • 1877‚ Paul Erlich‚ recognition of mast cells Historical Perspective • 1879‚
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