Structure of of the the Kidney Kidney • Each kidney is made up of one million nephrons richly supplied with blood • Empty into a smaller number of collecting ducts • Anatomically divided into outer portion cortex and inner section - medulla Mar 14‚ 2015 NBNS3504 6 Faculty of Nursing & Allied Health Sciences Functional Functional unit unit of of the the Structure of the Kidney Structure of the Kidney kidney kidney NEPHRONS Contains 5 components‚ 1. Bowman’s capsule – forming a blind-ending capsule
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2400-2401). This filtrate travels through nephron tubules where up to two-thirds of the water and soluble substances such as potassium and glucose are reabsorbed for use‚ the rest is excreted through the urine (Britt MD‚ Peitzman MD‚ Barie MD‚ & Jurkovich MD‚ 2012‚ p. 494). Another element important
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Capella University BIO1000 – Human Biology U01A1-Homeostasis-An Analogy January 12‚ 2012 Part 1 - Regulates your body temperature when you are outside on a cold winter day. When it is cold outside and the temperature drops‚ your body thermo receptors detect the drop and send signals to the hypothalamus. Neurons also send signals to smooth the walls of the blood vessels to make them contract‚ which creates a narrowing in the blood vessel also known as “vasoconstriction”. What vasoconstriction
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Diffusion‚ Osmosis‚ Active Transport There are two ways in which substances can enter or leave a cell: 1) Passive a) Simple Diffusion b) Facilitated Diffusion c) Osmosis (water only) 2) Active a) Molecules b) Particles Diffusion Diffusion is the net passive movement of particles (atoms‚ ions or molecules) from a region in which they are in higher concentration to regions of lower concentration. It continues until the concentration of substances is uniform throughout. Some major examples of diffusion
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A nephron consists of one glomerulus and one U-shaped tubule that drain the waste into the renal pelvis. [4]The glomerular filtration barrier consists of endothelial cells‚ the glomerular basement membrane and visceral epithelial cells. Figure 1 shows the basic
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SBI4U - Practice Exam Part A: Multiple Choice 1. When organic molecules are joined together and a water molecule is removed‚ the reaction is called which of the following? A. Dehydration synthesis. B. Hydrogenation. C. Hydrolysis. D. Oxidation. What is a nucleotide composed of? A. Nitrogenous base‚ 6 carbon sugar and a phosphate group. B. Nitrogenous base‚ 5 carbon sugar and a phosphorus group. C. Nitrogenous base‚ 5 carbon sugar and a phosphate group. D. None of the above. Enzymes work as catalysts
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Excretion Notes 4.2.1 (a) Define the term excretion (b) Explain the importance of removing metabolic wastes‚ including carbon dioxide and nitrogenous waste‚ from the body. Definitions: Excretion: “The removal of waste products of metabolism from the body”. Ingestion: “The intake of substances into the stomach”. Digestion: “The breakdown of molecules that are ingested from large molecules into small molecules”. Absorption: “The intake of those small molecules through the plasma membrane
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Biology- Maintaining a Balance Summary 1. Most organisms are active in a limited temperature range 1. identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their specificity on substrates Enzymes are proteins which act as catalysts in living things (they lower the amount of energy needed for a reaction‚ therefore increasing rate of reaction). Enzymes speed up reactions but are not used up by them. Enzymes catalyze only one
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M09_ZAO2177_01_SE_CH09.QXD 3/4/11 2:08 AM Page 143 R E V I E W S H E E T EXERCISE NAME ________________________________ LAB TIME/DATE _______________________ A C T I V I T Y 1 9 Renal System Physiology The Effect of Arteriole Radius on Glomerular Filtration 1. What are two primary functions of the kidney? ____________________________________________________________ __________________________________________________________________________________________________ 2. What are the components
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Nephrotic Syndrome: Inflamed is No Game Rasmussen College Author Note This research is being submitted on March 7‚ 2014‚ for Kara Wall’s NUR1470C Maternal Child Nursing Course. Nephrotic Syndrome: Inflamed is No Game In nephrotic syndrome‚ it is essential to understand the function and inner workings of the kidneys. The human body requires blood to be circulated in order for organs and tissues to be perfused. The perfusion of blood is enriched with products such as plasma
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