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Medulla

A cross section, rather than the usual longitudinal section, of the medulla demonstrates the thin limbs of the loop of Henle, the ascending thick limbs, medullary collecting ducts, and vasa recta. Note the prominent lateral cell boundaries in the collecting ducts. Proximal straight tubules do not extend this deeply into the medulla. 400x

Thin limbs <p>A cross section, rather than the usual longitudinal section, of the medulla demonstrates the thin limbs of the loop of Henle, the ascending thick limbs, medullary collecting ducts, and vasa recta. Note the prominent lateral cell boundaries in the collecting ducts. Proximal straight tubules do not extend this deeply into the medulla. 400x</p>

Thin limbs

A cross section, rather than the usual longitudinal section, of the medulla demonstrates the thin limbs of the loop of Henle, the ascending thick limbs, medullary collecting ducts, and vasa recta. Note the prominent lateral cell boundaries in the collecting ducts. Proximal straight tubules do not extend this deeply into the medulla. 400x

Ascending thick limbs <p>A cross section, rather than the usual longitudinal section, of the medulla demonstrates the thin limbs of the loop of Henle, the ascending thick limbs, medullary collecting ducts, and vasa recta. Note the prominent lateral cell boundaries in the collecting ducts. Proximal straight tubules do not extend this deeply into the medulla. 400x</p>

Ascending thick limbs

A cross section, rather than the usual longitudinal section, of the medulla demonstrates the thin limbs of the loop of Henle, the ascending thick limbs, medullary collecting ducts, and vasa recta. Note the prominent lateral cell boundaries in the collecting ducts. Proximal straight tubules do not extend this deeply into the medulla. 400x

Collecting ducts <p>A cross section, rather than the usual longitudinal section, of the medulla demonstrates the thin limbs of the loop of Henle, the ascending thick limbs, medullary collecting ducts, and vasa recta. Note the prominent lateral cell boundaries in the collecting ducts. Proximal straight tubules do not extend this deeply into the medulla. 400x</p>

Collecting ducts

A cross section, rather than the usual longitudinal section, of the medulla demonstrates the thin limbs of the loop of Henle, the ascending thick limbs, medullary collecting ducts, and vasa recta. Note the prominent lateral cell boundaries in the collecting ducts. Proximal straight tubules do not extend this deeply into the medulla. 400x

Vasa recta <p>A cross section, rather than the usual longitudinal section, of the medulla demonstrates the thin limbs of the loop of Henle, the ascending thick limbs, medullary collecting ducts, and vasa recta. Note the prominent lateral cell boundaries in the collecting ducts. Proximal straight tubules do not extend this deeply into the medulla. 400x</p>

Vasa recta

A cross section, rather than the usual longitudinal section, of the medulla demonstrates the thin limbs of the loop of Henle, the ascending thick limbs, medullary collecting ducts, and vasa recta. Note the prominent lateral cell boundaries in the collecting ducts. Proximal straight tubules do not extend this deeply into the medulla. 400x

Main Slide Thin limbs Ascending thick limbs Collecting ducts Vasa recta