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Gross Anatomy - The visceral layer consist of cells called...

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Urinary System Gross Anatomy * The papilla and each renal pyramid is nestled in a cup called a minor calyx which collects urine. * Two or three minor calices converge to form a major calyx , and two or three major calices converge in the sinus to form the funnel-like renal pelvis * The ureter is a tubular continuation of the renal pelvis that drains urine down to the urinary bladder. Micro Anatomy * Each kidney contains 1.2 million functional units called nephrons Micro Anatomy * A nephron consist of two principal parts * Renal corpuscle - (glomerulus) where the blood plasma is filtered * Renal tubule - processes the filtrate into urine Micro Anatomy * Consist of a ball of capillaries called a glomerulus enclosed in a two-layered glomerular (Bowman’s) capsule * The parietal layer is a simple squamous epithelium.
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Unformatted text preview: * The visceral layer consist of cells called podocytes wrapped around the capillaries. * The fluid that filters from the glomerular capillaries, called glomerular filtrate , collects in the capsular space between the parietal and visceral layer and then flows into the renal tubule. Renal (Uriniferous) Tubule * Is a duct that leads away form the glomerular capsule and ends at the tip of a medullary pyramid * Divided into four major regions * Proximal convoluted tubule * Nephron loop (loop of Henle) * Distal convoluted tubule * Collecting duct (not really a part of the nephron- receives urine from many nephrons * Proximal Convoluted Tubule * Longest and most coiled * Simple cuboidal epithelium with microvilli (brush border for absorption capacity)...
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