mammary duct


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duct

 [dukt]
a passage with well-defined walls, especially a tubular structure for the passage of excretions or secretions. adj., adj ductal.
accessory duct of Santorini a tubular structure that drains the lower part of the head of the pancreas.
alveolar d's small passages connecting the respiratory bronchioles and the alveolar sacs.
Bartholin's duct (duct of Bartholin) the larger and longer of the sublingual ducts.
bile d's (biliary d's) see bile ducts.
cochlear duct a spiral membranous tube in the bony canal of the cochlea between Reissner's membrane and the basilar membrane; it is divided into the scala tympani, scala vestibuli, and spiral lamina. Called also scala media.
common bile duct a duct formed by the union of the cystic and hepatic ducts; see also bile ducts.
cystic duct the passage connecting the gallbladder neck and the common bile duct.
efferent duct any duct that gives outlet to a glandular secretion.
ejaculatory duct the duct formed by union of the ductus deferens and the duct of the seminal vesicles, opening into the prostatic urethra on the colliculus seminalis.
endolymphatic duct a canal connecting the membranous labyrinth of the ear with the endolymphatic sac.
excretory duct one through which the secretion is conveyed from a gland.
hepatic duct the excretory duct of the liver, or one of its branches in the lobes of the liver; see also bile ducts.
Hepatic duct. From Applegate, 2000.
lacrimal duct the excretory duct of the lacrimal gland; see also lacrimal apparatus. Called also lacrimal canaliculus.
lacrimonasal duct nasal duct.
lactiferous d's ducts conveying the milk secreted by the lobes of the breast to and through the nipples.
lymphatic duct, left thoracic duct.
lymphatic d's see lymphatic ducts.
mammary duct lactiferous ducts.
mesonephric duct an embryonic duct of the mesonephros, which in the male becomes the epididymis, ductus deferens and its ampulla, seminal vesicles, and ejaculatory duct, and in the female is largely obliterated.
müllerian duct either of the two paired embryonic ducts developing into the vagina, uterus, and fallopian tubes, and becoming largely obliterated in the male.
nasal duct (nasolacrimal duct) the downward continuation of the lacrimal sac, opening on the lateral wall of the inferior meatus of the nose; see also lacrimal apparatus.
pancreatic duct the main excretory duct of the pancreas, which usually unites with the common bile duct before entering the duodenum at the major duodenal papilla; see also bile ducts.
papillary d's straight excretory or collecting portions of the renal tubules, which descend through the renal medulla to a renal papilla.
paramesonephric duct müllerian duct.
paraurethral d's Skene's glands.
parotid duct the duct by which the parotid glands empty into the mouth.
prostatic d's minute ducts from the prostate, opening into or near the prostatic sinuses on the posterior wall of the urethra.
lymphatic duct, right a vessel draining lymph from the upper right side of the body, receiving lymph from the right subclavian, jugular, and mediastinal trunks when those vessels do not open independently into the right brachiocephalic vein.
salivary d's the ducts of the salivary glands.
semicircular d's the long ducts of the membranous labyrinth of the ear.
seminal d's the passages for conveyance of spermatozoa and semen.
sublingual d's the excretory ducts of the sublingual salivary glands.
submandibular duct (submaxillary duct) the duct that drains the submandibular gland and opens at the sublingual caruncle.
tear duct lacrimal duct.
thoracic duct a duct beginning in the cisterna chyli and emptying into the venous system at the junction of the left subclavian and left internal jugular veins. It acts as a channel for the collection of lymph from the portions of the body below the diaphragm and from the left side of the body above the diaphragm.

mammary duct

Any of the ±20 terminal ducts that drain the radially arranged lobules of the breast into the nipple.
References in periodicals archive ?
Histopathological analysis showed that the lobules and acinars in the control group and group administered with FPEs alone showed no apparent hyperplasia, with few acinars and no clear secretion in the mammary ducts and lumens.
A group of salivary gland tumors analogous to mammary duct carcinoma].
The mammary ducts and blood vessels in the breast normally exhibit this appearance.
(33-35) In the normal breast, CK5/6 and 34[beta]E12 stain the ME cells and mammary duct epithelial cells.
The structure is roughly the size of a human hair and mimics the cells at the end of the mammary duct system.
In females among the 154 breast lesions, most common was fibroadenoma encountered in all age groups comprising of 67 cases(43.5%).Next commonest was benign breast disease seen in 31 cases (20.12%), followed by fibrocystic disease in 17 cases (11.03%), breast abscess in 11 cases (7.14%), mastitis in 06cases(3.89%), atypical ductal hyperplasia in 08 cases(5.19%), galactocele in 04 cases (2.59%), intraductal papilloma in 03 cases (1.94%), phylloides in 03 cases (1.94%) and single case (0.64%) of mammary duct ectasia.
Mammary ductal cells, also known as luminal cells, line the mammary ducts that carry milk during lactation.
Essentially, the genetic changes increased the branching density of mammary ducts in the breasts, helping mothers provide sufficient vitamin D and fat to their babies through lactation.
Newer modalities such as magnetic resonance ductography and ultrasound glactography are in its evaluation phases and promise more specific ways of predicting carcinoma in mammary ducts (24, 25).
Similar to fibromatosis, peripheral lymphoid aggregates may be present, but entrapped mammary ducts and lobules are not present within these lesions.
Light massage can help increase circulation and promote lymphatic drainage, as well as relieve plugged mammary ducts.
The MammoView[TM] instrument line for breast endoscopy produces clear and precise video images, allowing direct observation of extremely confined sites such as the fining of the mammary ducts. The system includes a retractable dilator in a sheaf that gently opens the ductal orifice at the nipple.