The excretory system eliminates wastes from the body while also maintaining water and chemical balances. The main organs of the excretory system are the kidneys‚ the ureters‚ the bladder‚ the urethra‚ the skin‚ and the lungs. The main things that the body must excrete are nitrogen wastes and carbon dioxide. Nitrogen wastes are a byproduct of protein metabolism. Protein metabolism is the making of amino acids into proteins and the breaking-down of proteins into amino acids. Carbon dioxide
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transplantation into another. Organs you can donate include: kidneys‚ heart‚ liver‚ pancreas‚ intestines‚ lungs‚ skin‚ bone‚ bone marrow‚ and cornea (the front part of the eye). [source: medlineplus.com] 2.Organ donations usually occur for patients with kidney failure‚ heart disease‚ lung disease‚ and cirrhosis of the liver. For patients who need a kidney or a liver‚ a living donor’s organs can be utilized‚ since we are already born with an extra kidney and the liver is regenerative. However‚ if the patient
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WEEK 1: AN INTRODUCTION TO HUMAN ANATOMY & PHYSIOLOGY 1. Define the terms anatomy and physiology‚ and explain their relationship using an example of a human structure with its corresponding function. Anatomy: The branch of science concerned with the bodily structure of humans‚ animals‚ and other organisms‚ esp. as revealed by dissection. Physiology: The branch of biology that deals with the normal functions of living organisms and their parts. Anatomy and physiology are connected in
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prominent nucleus. Can be found in medulla of kidney. Does not allow for passive diffusion easily. Columnar – tall‚ vertical‚ thick cells. Can be found in the small intestine. Does not allow passive diffusion easily. Active transport is needed. Move nutrients from intestine to blood = absorption! Can have microvilli to increase surface area. Squamous – large‚ thin and prominent nucleus. Like a sunny side up egg. Can be found in glomerulus of kidney‚ walls of capillaries‚ alveoli of lungs. Allows
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I. Describe the role of the following hormones in the formation of urine‚ specifically explain the stimulus for their release‚ actions (decrease/increase GFR) and whether or not dilute/concentrated urine results): ADH (Vasopressin) – ADH has an antidiuretic action that prevents the production of dilute urine. Formation of urine = in the DCT and collecting ducts‚ water movement out of the body is regulated by ADH. Stimulus for their release = lowered blood pressure or low salt or water concentration
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ongoing chemical and biological reactions in the body”. Organs of excretion: Skin: Salt and water in sweat Lungs: Removal of CO2 from respiration in every body cell. (CO2 lowers blood pH and can lead to death). Kidneys: Removal of nitrogenous waste in urine. (Too much can lead to kidney stones and bone loss.) Urea is produced from excess amino acids. Nitrogenous Excretion: When proteins are metabolised they produce carbon dioxide and water‚ but also nitrogen-containing products. To metabolise
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our bodies and kill us. It also helps in maintaining the composition of body fluids. The Excretory System of humans is made up of 4 structures: Two kidneys‚ two ureters‚ a bladder‚ and the urethra. The kidneys act as a filter to filter the waste products from the blood‚ the ureters are tubes that transport the main waste products (urine) from the kidneys to the bladder‚ where it is stored until it is excreted out of the body through the urethra. Formation of Urea: When you eat a food high in
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thrive. The most commonly trafficked organ is the kidney‚ which accounts for 10% of all worldwide transplants. A person can be paid 12‚000 dollars for a kidney to be removed and used‚ but on the black market they can be sold for anywhere up to 40‚000 to 60‚000 dollars. With this type of profit‚ this illegal cartel becomes appealing to those in desperation for money. Clinics are set up illegally where a person can go get the surgery for their kidney and be paid for it. Although not always are organs
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Dissection None Ren Al Meaning of Parts Kidney Pertaining To Meaning of Word Pertaining to the Kidneys Key Term Glomerulus Prefixes Roots Suffixes Word Dissection Glomerul us Meaning of Parts Little ball of yarn Presence of Meaning of Word Presence of a little ball of yarn Key Term Nephron Prefixes Roots Suffixes Word Dissection nephr on Meaning of Parts Kidney Presence of Meaning of Word Presence of kidney Key Term Filtrate Prefixes
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infections (UTI)s are the leading cause of bacterial infection in infants and children. While many UTIs are relatively benign‚ a simple lower UTI or cystitis can quickly become more serious as it ascends the urinary tract to invade the structures of the kidneys. Sheffield and Cunningham (2005) noted that Escherichia coli are responsible for up to 80 percent of all urinary tract infections including pyelonephrosis. The bacterium’s virulence is related to its ability to colonize and invade the urinary epithelium
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