The Nephrons

The tiny working units of the kidneys are the nephrons (Fig. 13-3). Each of these microscopic structures is basically a single tubule coiled and folded into various shapes. At the beginning of the tubule is the cup-shaped Bowman capsule, which is part of the blood-filtering device of the nephron. The tubule then folds into the proximal convoluted tubule, straightens out to form the loop of Henle, coils again into the distal convoluted tubule, and then finally straightens out to form a collecting tubule.

Nephrons Diagram

FIGURE 13-2. Longitudinal section through the kidney showing its internal structure, and an enlarged diagram of a nephron. There are more than 1 million nephrons in each kidney. (Reprinted with permission from Cohen BJ, Wood DL. Memmler's The Human Body in Health and Disease. 9th Ed. Philadelphia: Lippincott Williams & Wilkins, 2000.)

FIGURE 13-2. Longitudinal section through the kidney showing its internal structure, and an enlarged diagram of a nephron. There are more than 1 million nephrons in each kidney. (Reprinted with permission from Cohen BJ, Wood DL. Memmler's The Human Body in Health and Disease. 9th Ed. Philadelphia: Lippincott Williams & Wilkins, 2000.)

Nephron Anatomy
FIGURE 13-3. A nephron and its blood supply. (Reprinted with permission from Cohen BJ, Wood DL. Memmler's The Human Body in Health and Disease. 9th Ed. Philadelphia: Lippincott Williams & Wilkins, 2000.)
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Responses

  • anke
    What region of the kidney is the loop of henle in?
    8 years ago
  • genet
    What is the function of the distal convoluted tubule?
    7 years ago
  • joe
    What is the diagram of longitude section of nephron'?
    3 years ago

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