(n.) Any tube or canal by which a fluid or other substance is conducted or conveyed.
(n.) One of the vessels of an animal body by which the products of glandular secretion are conveyed to their destination.
(n.) A large, elongated cell, either round or prismatic, usually found associated with woody fiber.
(n.) Guidance; direction.
Example Sentences:
(1) The most actively proliferating region of the excurrent duct system is zone 3 of the epididymis, whereas the least active region is the ductuli efferentes.
(2) Endoscopic retrograde cholangiography failed to demonstrate any bile ducts in the right postero-lateral segments of the liver, the "naked segment sign".
(3) Immunohistochemical observation of myoepithelial cells with monoclonal antibody from human mammalian cancer suggested that these cells play an important role in the process of glandular ducts formation.
(4) Aside from these characteristic findings of HCC, it was important to reveal the following features for the diagnosis of well differentiated type of small HCC: variable thickening or distortion of trabecular structure in association with nuclear crowding, acinar formation, selective cytoplasmic accumulation of Mallory bodies, nuclear abnormalities consisting of thickening of nucleolus, hepatic cords in close contact with bile ducts or blood vessels, and hepatocytes growing in a fibrous environment.
(5) High mortality, severe destruction of pancreatic B-cells and presence of sporadic mononuclear infiltrations in islets and around excretory ducts were observed.
(6) No methionine-enkephalin-positive nerves could be detected in the common bile duct, pancreatic duct or gallbladder.
(7) The most serious complications following operative treatment are retained bile duct calculi (2.8%), wound infection and biliary fistulae.
(8) In case of biliary and pancreatic duct obstruction with pure pancreatic reflux, both oedema and inflammatory infiltrations were evident, whereas, in the presence of biliary reflux too, more serious histological features were detected.
(9) Dacryography is the only means of exploring the permeability of the lacrymal ducts and to conclude as the whether watering of the eyes is organic or functional.
(10) Papillomatosis of the biliary ducts is exceptional.
(11) Histological studies with neonatal mice raise the possibility that Müllerian duct tissue may represent a site for the transplacental toxicity of DES in both the male and female fetus.
(12) Six of the obstructed livers developed biliary cast formation so extensive that the smaller intrhepatic ducts became plugged to an extent that they could no longer have been treated by surgical mena.
(13) The presence of prostatic invasion either into the stroma or involving prostatic ducts and acini only had no adverse effect on outcome.
(14) A series of 172 lithiasis of the common bile duct has been analysed.
(15) Compared with the portal vein, lymphatic duct revealed a greater resistance to hypoxia.
(16) Although 25 Gy IORT plus 50 Gy EBRT was tolerated by the duodenum to 135 days, these doses may cause later pancreatic injury as an expression of damage to blood vessels and ducts.
(17) This report describes a newly developed catheter system with the aid of which the cystic duct and gallbladder can be reliably catheterized, retrograde, via an endoscope.
(18) Optical light, transmission, and scanning electron microscopy were used in investigations of epithelia in the glandular region of the milk cistern and greater lactiferous ducts and yielded the following findings, four and six hours from infection: degeneration and necrosis of epithelial cells, intraepithelial foreign cell infiltration (neutrophilic granulocytes, lymphocytes, macrophages), intra-epithelial oedema and locally delimited epithelial loss.
(19) To study the role of the serum complement system in the early necrosis of acinar cells an acute pancreatitis was produced by injection of basement membrane antibodies into the pancreatic duct of mice and rats.
(20) Predisposition to pancreatitis relates to duct size rather than stone size per se.
Ureter
Definition:
(n.) The duct which conveys the urine from the kidney to the bladder or cloaca. There are two ureters, one for each kidney.
Example Sentences:
(1) One rare case of blind-ending branch originating in the upper third of the ureter are described.
(2) Animals in Groups 2 and 3 underwent exposure and manipulation of the right ureter.
(3) During placement of the Fletcher suit one of the ureters is catheterized by a special stent which appears on the X-rays control used for dosimetry.
(4) Regarding ureters read as true positives on indirect study, if that ureter has ever shown reflux at any time, or if it drained a scarred kidney specificity was improved to 97% without changing the sensitivity.
(5) Excretory urogram revealed bilateral hydronephrosis and voiding cystogram revealed VUR on left ureter.
(6) One is the ureteral peristaltic contraction which plays a principal role in urinary bolus transport at low flows; the other is ureteral wall tonus, which plays an important role in the transport of columns of urine by the ureter, which does not coapt its walls, at the higher flow rates.
(7) A 68-year-old female patient was admitted for the examination of duplication of right ureter and right hydronephrosis.
(8) A significant number of ureters with ectopic insertion occur in the single (nonduplex) collecting system.
(9) At operation a patent left umbilical artery was partially obstructing the distal left ureter.
(10) Based on a limited experience we have found that triangular flap ureteroplasty is a worthwhile means of repeat reimplantation of the obstructed ureter and perhaps provides a better alternative than transureteroureterostomy.
(11) The ureter was connected to the epididymis of the testicle.
(12) The urinary bladder of 10 clinically normal dogs was excised and the ureters were implanted into an isolated, vagotomized gastric segment derived from the fundic region of the stomach.
(13) He had undergone pelvic exenteration with the ureterostomy for rectal cancer invading the bladder five months previously and retrograde ureteric catheters were inserted bilaterally into the ureters.
(14) Both methods have a place if diversion is necessary in cases of severe hydronephrosis and decompensated ureters.
(15) Rectal examination showed that both kidneys and ureters were enlarged.
(16) The CGRP also inhibited the NKA- and NPK-induced contractions of the ureter in vitro.
(17) That is, be partial and permanent, produced in fetal or newborn animals, preferably be moderate in degree, the diameter should grow in pace with the growing ureter, and be followed for a long period.
(18) The reservoir is made up using 40 cm of detubulized ileum; on the afferent loop (10 cm long) the right ureter is implanted according to the Camey-Le Duc technique, on the efferent loop (25 cm long) the left ureter is implanted according to the same technique.
(19) We present a rare case of primary amyloidosis involving the ureter and renal pelvis.
(20) To the best of our knowledge, this is the first report of a small cell carcinoma originating in the ureter in Japan.