tubule

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tu·bule

 (to͞o′byo͞ol, tyo͞o′-)
n.
A very small tube or tubular structure.

[Latin tubulus, diminutive of tubus, tube.]

tubule

(ˈtjuːbjuːl)
n
(Anatomy) any small tubular structure, esp one in an animal, as in the kidney, testis, etc
[C17: from Latin tubulus a little tube]

tu•bule

(ˈtu byul, ˈtyu-)

n.
1. a small tube; a minute tubular structure.
[1670–80; < Latin tubulus=tub(us) pipe + -ulus -ule]

tubule

A tiny tube, as in the collecting tubules and convoluted tubules of the kidney.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tubule - a small tubetubule - a small tube        
tube-shaped structure, tube - (anatomy) any hollow cylindrical body structure
microtubule - a microscopically small tubule
nephron, uriniferous tubule - any of the small tubules that are the excretory units of the vertebrate kidney
uveoscleral pathway - a tubule that drains excess aqueous humor
seminiferous tubule - any of the numerous long convoluted tubules in the testis which are the sites where spermatozoa mature
vasa efferentia - the several highly convoluted tubules that lead from the rete testis to the vas deferens and form the head of the epididymis
trachea - one of the tubules forming the respiratory system of most insects and many arachnids
Translations
Tubulus

tu·bule

n. túbulo, conducto o canal pequeño;
collecting ______ colector;
renal ______ renal;
seminiferous ___conduto seminífero.

tubule

n túbulo
References in periodicals archive ?
In these patients, the absence of H+-ATPase pump in the intercalated cells of the collecting tubules has been documented, which can result in the inability to secrete protons and acidify urine [2].
The kidneys of the G3 group showed hyaline cast, and inflammatory cells, and nuclear pyknosis, collect nuclear material behind the nuclear envelope: Nuclear Margination, as they appear distal tubule, and thick limb of henle loop and thin limb of henle loop, and collecting tubule. Renal tubules especially distal were more affected than filtration apparatus (glomerular capillaries).
Gitelman syndrome is an autosomal recessive channelopathy of the Na-Cl transporter in the distal collecting tubule that can mimic hyperaldosteronism and may present later in life.
In many types of metabolic alkalosis, the excess HC03- acts as a poorly reabsorbable anion and "carries" more sodium to the collecting tubule, leading to increased sodium-potassium exchange and urinary potassium loss.
Renal cysts occur in the diverticulum of the collecting tubule. Although the causes of renal calyceal cysts have not yet been clearly established, few studies have reported the possibility of congenital or acquired renal calyceal diverticula progressing to renal calyceal cysts.[sup.3]-[sup.5] However, the study of the natural course of renal calyceal cysts is expected to be difficult, since renal calyceal diverticula themselves occur infrequently.
Discuss the mechanism by which vasopressin increases the water permeability of the collecting tubule.
Collecting tubule. The contribution of the cortical collecting tubule to overall calcium reabsorption is small because the calcium permeability in the cortical collecting tubule is lower than in the thick ascending limb and proximal tubule.
The major site for regulating net [K.sup.+] excretion occurs in the late distal tubule and cortical collecting tubule. The cellular mechanisms for regulating [K.sup.+] transport are essentially the same in the 2 nephron segments, and therefore, will be discussed together using 1 cellular model (see Figures 3A and 3B).