What's the difference between canaliculus and duct?
Canaliculus
Definition:
(n.) A minute canal.
Example Sentences:
(1) This test has been reliable in evaluating lacrimal function and suggests that a canaliculus can be repaired and splinted satisfactorily.
(2) Traumatic avulsion of the common canaliculus was repaired in one patient by using a segment of the angular vein as an autograft.
(3) Some granules communicated directly with dilated channels of the OCS, and several were frequently connected to the same canaliculus.
(4) Urethral stenosis, whether congenital or acquired, conditions urinary stasis, with urethro-vesical-canaliculus-glandular mictional reflux resulting in urinary infection.
(5) Pressure in the lacrimal canaliculus was recorded during voluntary blinks, tight squeezing of the lids, eye movements, and pressure changes in the nose.
(6) Subcellular fractions studied were: three microsomal subfractions, Golgi heavy and intermediate fractions, and plasma membrane light (canaliculus-enriched) fraction.
(7) Cytosolic alkalinization correlated with acid accumulation in the secretory canaliculus until a set point was reached.
(8) 3) The cracks were observed to run through the face of crosscutting of canaliculus dentalis.
(9) The integrity of the cytoskeletal structure of the bile canaliculus (BC) may be necessary for bile secretion.
(10) Erosion of the bony wall of the paravestibular canaliculus (PVC) is demonstrable, with incorporation of the vein of the PVC inside the margin of the widened vestibular aqueduct.
(11) We concluded that this was due to kinking of the canaliculus by the enlarged sac.
(12) Some of them are large and apparently similar to the short lateral branches of the bile canaliculus; others are smaller and arise obliquely from the subjacent cortical areas of the hepatocyte cytoplasm.
(13) Impaired flow beyond the canaliculus may result from ductal injury.
(14) The remaining 4 cases with a small common canaliculus did not show any projections.
(15) In seven patients with stenosis of the canaliculus communis due to chronic inflammation this new technique was successfully used.
(16) The canaliculus cochleae was delated in the daughter.
(17) Using this second fluorescence property, we determined the distribution of the apical membrane of the intracellular canaliculus of isolated single mammalian parietal cells and also the location of the apical membrane on the external surface of newt oxyntic cells.
(18) The management of canalicular lacerations is discussed and it is recommended that the function of an intact canaliculus should not be jeopardized by surgical manipulations in an attempt to repair a damaged fellow canaliculus.
(19) Silicone tubing was then threaded through the superior and inferior canaliculus system in the standard fashion.
(20) Omeprazole is a weak base that reaches the parietal cell through the bloodstream, diffuses through the cytoplasm, and becomes activated and trapped as a sulfenamide in the acidic canaliculus of the parietal cell.
Duct
Definition:
(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.