Essentials of Anatomy and Physiology

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Bowman's capsule

(inner layer)

Bowman's capsule

(outer layer)

Efferent arteriole

Juxtaglomerular

cells

Afferent arteriole

Collecting tubule

Distal

convoluted tubule

Podocyte

Glomerulus

Proximal convoluted
tubule

Loop of Henle

Peritubular capillaries

Renal

cortex

Renal

medulla

Figure 18–3. A nephron with its associated blood vessels. Portions of the nephron have

been magnified. The arrows indicate the direction of blood flow and flow of renal filtrate.

See text for description.

QUESTION:How does the shape of a podocyte contribute to its function? How is the lin-

ing of the proximal convoluted tubule specialized?