High resolution

Module 7: Figure kidney tubule

Structural organization of a kidney tubule.

The kidney tubule begins at the glomerulus where filtration occurs. The primary urine is then passed down the proximal convoluted tubule (PCT) before entering the descending segment of the loop of Henle, followed by the thin ascending limb and then the thick ascending limb of Henle (TALH). A portion of this TALH bends back and makes close contact with the glomerulus, afferent arteriole (AA) and efferent arteriole (EA) to form the juxtaglomerular apparatus (JGA) (Module 7: Figure juxtaglomerular apparatus). The TALH leads into the distal convoluted tubule (DCT) that connects to the collecting duct.