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Outline Chapter 2 - Topic 2 Structure and Function of the...

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Topic 2 Structure and Function of the Kidneys and the Lower Urinary Tract Structure of the Kidneys Structure and function of the kidneys are closely linked. Gross Anatomy Paired, retroperitoneal organs Weight: g Length: Width: Thickness: Cortex, medulla and papilla - Composed of nephrons, blood vessels, lymphatics, and nerves. - Medulla divided into 8 – 12 conical masses called _______________________. Renal Vasculature What percent of blood flows to the kidneys? ___________________. Kidneys constitute what percent of total body weight?______________. Renal artery interlobar artery Arcuate artery Interlobular artery Afferent arteriole Glomerular capillaries (glomerulus) Efferent arteriole A capillary network: peritubular capillaries (around nephrons) Peritubular capillaries supply blood to the nephron. - Juxtamedullary nephron’s peritubular capillaries also give rise to the vasa recta* - Blood from ascending recti arcuate vein interlobar vein and renal vein, which courses beside the ureter. What are vasa recta? * Note:
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