Shakespeare Sance Homework # 4 The factors that would cause the lung to collapse are elastic recoil and high surface tension. And the factors that prevent the lungs from collapse are negative intrapulmonary pressure and surfactant. During expiration : volume increase and pressure decrease During inspiration : volume decrease and pressure increase The role of surfactant is to decrease surface tension by more than 40 times. And it’s effect on surface tension is to prevent them from PO2
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University of Phoenix Kidney disease has become more prevalent over the years‚ one in nine Americans has chronic kidney disease‚ resulting in the need for a kidney transplant. Kidney failure is caused by variety of factors resulting in damage of the nephrons‚ which are the most important functioning unit of the kidneys. Kidney failure can be broken down into three groups: acute‚ chronic‚ end-stage. Once kidney failure is irreversible‚ dialysis or transplantation is the only method of survival. To avoid
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Kharishma Patel BIO 3422-E Urine Analysis Lab Objective The objective of this experiment shall be to examine the effects of different types of fluids on the renal system including rate of urine production‚ pH‚ and specific gravity. Hypothesis The group drinking water will have the highest rate of urine production. The group that drinks water only when thirsty will have the lowest rate of urine production. The specific gravity of urine for all treatment groups will be around 1.000. The pH for
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different aspects of urine production. When urine is being formed‚ there are three processes that must occur. The first step that occurs is filtration. In this step‚ diffusion occurs under high pressure because blood is moving to the glomerulus of the nephron through the afferent blood vessel. The lumen size of the vessel becomes immediately smaller‚ so when substances in the blood are being filtered out‚ they are pushed through by a high pressure. The kidney at this point is simply trying to maintain
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The Human Heart The human heart is one of the most important organs in our bodies. However‚ it is basically a muscular structure that pumps blood. In this report‚ there will be information on the size‚ structure‚ function‚ and diseases/health problems of the human heart. The size of the human heart varies due to factors such as gender‚ size of the body‚ inheritance‚ and age. However‚ a normal size of a person’s heart is about the same size as his/her clenched fist (9cmx13cm)‚ and has a mass between
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Biology exam Endocrine system: Hormones: chemical messengers that coordinate the body’s activates. Substances secreted by cells that act to regulate the activity of other cells in the body. They are part of the endocrine system and they are slow acting but have a longer affect than neurotransmitters. Functions: * regulate growth‚ development‚ behavior‚ and reproduction. * Maintain homeostasis * Regulate metabolism and water and mineral balance * Respond to external stimuli
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Homeostasis Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. |Substance |In Bowman’s Capsule |In Urine | |X |0.1 g/L |0.1 g/L | |Y |0.1 g/L |1.0 g/L
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ANATOMY AND PHYSIOLOGY Chronic Kidney Disease Cardiovascular System The cardiovascular system is sometimes called the circulatory system. It consists of the heart‚ which is a muscular pumping device‚ and a closed system of vessels called arteries‚ veins‚ and capillaries. As the name implies‚ blood contained in the circulatory system is pumped by the heart around a closed circuit of vessels as it passes again and again through the various "circulations" of the body. The Heart * The heart
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MIDTERM NOTES By: Dr. Vianca Jane De Jesus-Catangal INTESTINE longest coiled tube in the alimentary tract it has two parts (small and large) small intestine is in the anterior part it is the principal organ for digestion and absorption the posterior part is the large intestine its lumen is at the center and it has a finger like fold VILLI (sing. Villus)which hasten absorption TUNICA SEROSA or VISCERAL PERITONIUM- outermost covering TUNICA MUSCULARIS – forms the major part of
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food rich in protein‚ it is then carried in the blood stream to the kidneys which removes it from the blood. The urea is removed from the blood by miniscule filtering units within the kidney called nephrons. Urea‚ along with water and other waste substance‚ forms urine as it passes through the nephrons and down the renal tube to the kidney. From the kidney the urine passes down two thin tubes (called ureters) to the bladder. Ureters are constantly tightening and relaxing in order to force the urine
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