Lab_Ex40_HW

Lab_Ex40_HW - Melissa Pomeroy Salti AP III Lab HW

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Melissa Pomeroy Salti – AP III Lab HW Exercise 40 Homework - Anatomy of the Urinary System What are the functions of the kidneys o To filter from the blood: toxins, metabolic (nitrogenous) wastes and excess ions o To excrete them in the form of urine o To maintain the electrolyte, acid-base and fluid balance of the blood (it is a major homeostatic organ of the body) What is the function of the fat that surrounds the kidney To hold the kidney in place in the retroperitoneal cavity Define ptosis A condition that results in the kidneys dropping to an inferior position in the retroperitoneal cavity due to excessive weight loss or extremely thin body type Define micturition To urinate Define incontinence Inability to voluntarily control the external sphincter of the bladder resulting accidental urination What are the parts of a nephron Nephron is the anatomical and functional unit of the kidney responsible for forming urine. Parts of the nephron include: o Renal corpuscle : the glomerulus and the capsule Glomerulus – a capillary knot Glomerular capsule (Bowman’s capsule) – enlarged end of the tubule encasing the glomerulus o Visceral layer (contains podocytes) o Parietal layer o Capsular lumen o Renal tubule  Proximal convoluted tubule (simple cuboidal w/ microvilli)
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Lab_Ex40_HW - Melissa Pomeroy Salti AP III Lab HW

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