During tubular reabsorption, the tight junctions along the renal tubule completely seal off the interstitial fluid from the fluid in the tubule lumen.

Question

Quizplus · Accepted Answer

Tight junctions along the renal tubules allow for selective reabsorption of various substances, but they do not completely seal off the interstitial fluid from the tubule lumen. Some substances can also pass through the junctions in small amounts or by other mechanisms.

During Tubular Reabsorption, the Tight Junctions Along the Renal Tubule