collecting tubule


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collecting tubule

Etymology: L, colligere, to gather, tubulus, small tube
any one of the many relatively straight tubules of the kidney that funnel urine into papillary ducts in the renal pelvis. The small collecting tubules play an important role in maintaining the fluid balance of the body by allowing water to osmose through their membranes into the interstitial fluid in the renal medulla. Antidiuretic hormone in the blood makes the collecting tubules permeable to water. If no antidiuretic hormone is present in the blood, membranes of the collecting tubules are practically impermeable to water. See also Bowman's capsule, kidney.

collecting tubule

One of the small ducts that receive urine from several renal tubules, which join together to provide a passage for the urine to larger straight collecting tubules (papillary ducts of Bellini) that open into the pelvis of the kidney.
See: kidney for illus
See also: tubule
References in periodicals archive ?
Collecting tubule, proximal tubule, loop of Henle, distal tubule
Proximal tubule, loop of Henle, distal tubule and collecting tubule
Loop of Henle, proximal tubule, collecting tubule and distal tubule
Proximal tubule, collecting tubule, distal tubule and loop of Henle.
There were extensive cellular necroses leading to degeneration of convoluted and collecting tubules.
4] treated Anti-E-cadherin ++++ proximal tubules ++ undifferentiated mes- onephrogenic tnesenchyme ++++ collecting ducts + glomerulus and distal tubules Anti-desmoglein ++++ interstitial cells Ant I-P-cadherin -- Anti-N-cadherin -- Anti-adherin-5 -- Anti-NCA N1 180 -- Anti-[beta] catenin + distal tubules ++++ collecting tubules +++ proximal tubules - glomerulus Anti-[alpha] catenin ++++/+++ collecting and distal tubules + proximal tubules - glomerulus Anti-[gamma] catenin -- Anti - pp 120 -- B.
Glomeruli, distal convoluted tubules, and collecting tubules were relatively spared in the vultures that had early lesions.