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The Urinary System Ch. 22 HBHD

The Urinary System Ch. 22 HBHD

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Structures of a nephron<br />

Proximal convoluted tubule:<br />

<strong>The</strong> coiled portion leading from Bowman<br />

<strong>The</strong> coiled portion leading from Bowman’s s capsule<br />

Loop of Henle:<br />

<strong>The</strong> bottom portion of the nephron between the Proximal & Distal<br />

Convoluted Tubules<br />

Distal Convoluted Tubule:<br />

<strong>The</strong> coiled portion farthest from Bowman<br />

<strong>The</strong> coiled portion farthest from Bowman’s s capsule<br />

Excess water is reabsorbed & urine is concentrated<br />

Amount of water reabsorbed is controlled by ADH (antidiuretic<br />

hormone –produced produced by pituitary)<br />

Empties into a collecting duct, which then continues through the<br />

medulla toward the renal pelvis<br />

Juxtaglomerular apparatus:<br />

“near near the glomerulus”<br />

glomerulus<br />

Helps regulate kidney functions by releasing hormones

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