ch26 - Chapter 26 THE URINARY SYSTEM Chapter Synopsis...

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Chapter 26 THE URINARY SYSTEM Chapter Synopsis Chapter 26 describes the anatomy and physiology of the urinary system; its role in maintaining homeostasis of blood composition, volume, pH, and pressure; and its importance as an excretory system. The role of the kidneys in filtering blood and restoring selected amounts of water and solutes to the bloodstream is discussed. There is a careful description of the three stages of urine formation: glomerular filtration, tubular reabsorption, and tubular secretion. The mechanisms of urine dilution and urine concentration, including the countercurrent mechanism, are explained, followed by a short discussion of diuretics and kidney function evaluation. The structure, histology, and physiology of ureters, urinary bladder, and urethra are considered. Students are introduced to the physical characteristics of urine, its normal chemical composition, and representative abnormal constituents. The developmental anatomy of the urinary system is covered, along with changes in the urinary system with aging. The role of the urinary system in maintaining homeostasis is examined. Disorders of the urinary system presented include renal calculi, urinary tract infections, glomerular diseases, renal failure, and polycystic kidney disease. The chapter concludes with a glossary of medical terminology related to the urinary system. Clinical applications include nephroptosis, number of nephrons, loss of plasma proteins, kidney transplant, cystoscopy, glucosuria, diuretics, dialysis, and urinary incontinence and retention.
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Chapter Outline And Objectives INTRODUCTION 1. List the organs of the urinary system and briefly explain the work they do. 2. Distinguish between nephrology and urology. OVERVIEW OF KIDNEY FUNCTION 3. List and describe the functions of the kidneys. ANATOMY AND PHYSIOLOGY OF THE KIDNEY 4. Describe the position of the kidneys in the body. External Anatomy of the Kidney 5. Describe the renal hilus and list the structures that extend through it. 6.
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This note was uploaded on 06/06/2011 for the course BIO 115 taught by Professor Chen during the Fall '09 term at Moraine Valley Community College.

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ch26 - Chapter 26 THE URINARY SYSTEM Chapter Synopsis...

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