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Urinary & Reprod Systems

Urinary & Reprod Systems - Urinary System Urinary...

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Urinary System
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Urinary System Components Urinary System filters blood (filters 200 liters of blood daily) Remove waste products that are then excreted in the urine Filtered components that the body wants to save are picked up from the nephron and put back in the blood Components of the Urinary System: Kidney Ureter: connects kidney to urinary bladder Urinary Bladder Urethra: transport for urine from the urinary bladder out of the body
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Urinary System Organs Figure 25.1a
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Kidney Location and External  Anatomy Figure 25.2a
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Kidney Anatomy Located retroperitoneal (posterior to the peritoneal cavity) The right kidney is lower than the left due to the presence of the liver The medial surface is concave and has a vertical cleft called the hilus The hilus is where the ureters, blood vessels and nerves enter/exit the kidney
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Kidney Support Structures Renal capsule fibrous capsule directly surrounding kidney tissue prevents kidney infection Adipose capsule fatty tissue that cushions the kidney helps attach kidney to the body wall Renal fascia: outer layer of dense fibrous connective tissue that anchors the kidney
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Kidney Internal Anatomy Cortex: Outer ring of tissue and Renal Columns Medulla: Consists of all Renal Pyramids Calyces Minor Calyx from each renal pyramid Major Calyx where minor calyces join each other Renal Pelvis: Major calyces empty into the renal pelvis which leads to the ureter
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Internal Anatomy Figure 25.3b Know All Components of the Kidney
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Blood Supply Figure 25.3c
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 The Nephron Figure 25.4b Know the Component Parts of a Nephron For all Relevant Figures
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Filtration Membrane Figure 25.7a
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Filtration Membrane Figure 25.7c
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Nephrons Figure 25.5b
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Capillary Beds Figure 25.5a
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Juxtaglomerular Apparatus (JGA) Figure 25.6
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Juxtaglomerular Apparatus Juxtaglomerular Cells function to release kidney hormones such as renin
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