omphalomesenteric duct
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om·pha·lo·mes·en·ter·ic duct
obsolete term for yolk stalk.
omphalomesenteric duct
See yolk stalk.
om·pha·lo·en·ter·ic duct
(om'fă-lō-en-ter'ik dŭkt)Narrowed tubular connection between the embryonic midgut and umbilical vesicle (yolk sac).
Synonym(s): omphalomesenteric duct, yolk stalk.
Synonym(s): omphalomesenteric duct, yolk stalk.
duct
(dukt) [L. ductus, conveyance (for water)]1. A narrow tubular vessel or channel, esp. one that conveys secretions from a gland.
2. A narrow enclosed channel containing a fluid, e.g., the semicircular duct of the ear.
accessory pancreatic duct
A duct of the pancreas leading into the pancreatic duct or the duodenum near the mouth of the common bile duct. Synonym: duct of Santorini
alimentary duct
An obsolete term for the thoracic duct.
alveolar duct
A branch of a respiratory bronchiole that leads directly to the alveolar sacs of the lungs.
See: alveolus for illusBartholin duct
See: Bartholin, Caspar (the younger))
BILE DUCTS
bile duct
Any of the intercellular passages that convey bile from the liver to the hepatic duct, which joins the duct from the gallbladder (cystic duct) to form the common bile duct (ductus choledochus), and which enters the duodenum about 3 in (7.6 cm) below the pylorus.
Synonym: biliary duct See: illustrationbiliary duct
Bile duct.Botallo duct
Ductus arteriosus.cochlear duct
Cochlear spiral canal.common bile duct
The duct that carries bile and pancreatic juice to the duodenum. It is formed by the union of the cystic duct of the gallbladder and the hepatic duct of the liver and is joined by the main pancreatic duct.
Synonym: ductus choledochus See: biliary tract for illuscystic duct
The secretory duct of the gallbladder. It unites with the hepatic duct from the liver to form the common bile duct. See: biliary tract for illus
efferent duct
Any of a group of 12 to 14 small tubes that constitute the efferent ducts of the testis. They lie within the epididymis and connect the rete testis with the ductus epididymidis. Their coiled portions constitute the lobuli epididymidis.
ejaculatory duct
The duct that conveys sperm from the vas deferens and secretions from the seminal vesicle to the urethra.
endolymphatic duct
In the embryo, a tubular projection of the otocyst ending in a blind extremity, the endolymphatic sac. In the adult, it connects the endolymphatic sac with the utricle and saccule of the inner ear.
duct of the epoophoron
Gartner's duct.excretory duct
Any duct that conveys a waste product from an organ, such as the collecting duct of the renal tubule.
Gartner duct
See: Gartner, Hermannhepatic duct
Either of the ducts that receive bile from the right or left lobe of the liver and carries it to the common bile duct. Synonym: ductus hepaticus dexter; ductus hepaticus sinister
intercalated duct
Any of several short, narrow ducts that lie between the secretory ducts and the terminal alveoli in the parotid and submandibular glands and in the pancreas.
interlobular duct
A duct passing between lobules within a gland, e.g., one of the ducts carrying bile.
lacrimal duct
Any of the small excretory ducts of the lacrimal glands.
lactiferous duct
Any of 15 to 20 ducts that drain the lobes of the mammary gland. Each opens in a slight depression in the tip of the nipple.
Synonym: milk duct)
DRAINAGE AREAS FOR LYMPHATIC DUCTS
lymphatic duct
Either of two main ducts conveying lymph to the bloodstream: the left lymphatic (thoracic) and the right lymphatic duct, which drains lymph from the right side of the body above the diaphragm. It discharges into the right subclavian vein. It is smaller than the left lymphatic duct.
See: thoracic duct; illustrationmesonephric duct
Wolffian duct.milk duct
Lactiferous duct.müllerian duct
Either of the bilateral embryonic tubes in the embryo from which the oviducts, uterus, and vagina develop in the female; in the male, they atrophy. Synonym: Müller duct
nasolacrimal duct
A membranous tube that runs in the nasolacrimal canal and drains tears from the lacrimal sac to the nasal cavity. It opens beneath the inferior nasal concha.
omphalomesenteric duct
Yolk stalk.pancreatic duct
The duct that conveys pancreatic juice to the common bile duct and duodenum. Synonym: duct of Wirsung
papillary duct
Any of the large ducts formed by the uniting of the collecting tubules of the kidney; it empties into the renal pelvis.
papillary duct of Bellini
See: Bellini, Lorenzoparamesonephric duct
The genital canal in the embryo. In females it develops into the oviducts, uterus, and vagina; in males it degenerates to form the appendix testis.
paraurethral duct
Skene duct.parotid duct
Stensen duct.prostatic duct
One of about 20 ducts that discharge prostatic secretion into the urethra. Synonym: duct prostaticus
duct of Rivinus
See: Rivinus, Augustsalivary duct
Any of the ducts that drain a salivary gland.
duct of Santorini
Accessory pancreatic duct.secretory duct
Any of the smaller canals of a gland.
segmental duct
One of a pair of embryonic tubes located between the visceral and parietal layers of the mesoblast on each side of the body.
semicircular duct
One of three membranous tubes forming a part of the vestibular labyrinth of the inner ear. They lie within the semicircular canals and bear corresponding names: anterior, posterior, and lateral. The semicircular ducts originate from the utricle as a single common tube (crus communale). The three ducts then branch, and each follows the course of a different bony semicircular canal. At their far ends the ducts widen into an ampulla that contains a specialized endothelium that is sensitive to motion of the endolymph. Axons from receptor cells in these sensory epithelia transmit motion information to the brain via the vestibular division of the vestibulococchlear nerve (CN VIII). See: labyrinth for illus.
seminal duct
Any of the ducts that convey sperm, specifically the ductus deferens and the ejaculatory duct.
Skene duct
See: Skene, Alexanderspermatic duct
The secretory duct of the testicle that later joins the duct of the seminal vesicle to become the ejaculatory duct. Synonym: ductus deferens; vas deferens; testicular duct
Stensen duct
See: Stensen, Nielsstriated duct
Any of a class of ducts within the lobules of glands, esp. salivary glands, that contain radially appearing striations within the cells, denoting the presence of mitochondria.
sublingual duct
Any of the secretory ducts of the sublingual gland.
See: Bartholin ducttear duct
A duct that conveys tears. These include secretory ducts of lacrimal glands, and lacrimal and nasolacrimal ducts.
testicular duct
Spermatic duct.thoracic duct
The main lymphatic duct, originating at the cisterna chyli. It passes upward through the diaphragm into the thorax and continues upward along the aorta and esophagus to the neck, where it turns to the left and enters the left subclavian vein near its junction with the left internal jugular vein. It receives lymph from all parts of the body except the right side of the head, neck, thorax, and upper extremity. See: lymphatic system for illus
thyroglossal duct
In the embryo, a duct that connects the thyroid diverticulum with the tongue. It eventually disappears, its point of origin being indicated as a pit, the foramen cecum. It sometimes persists as an anomaly.
umbilical duct
Yolk stalk.utriculosaccular duct
A narrow tube emanating from the utricle, connecting it to the saccule, and opening into the endolymphatic duct of the inner ear.
vitelline duct
Yolk stalk.wolffian duct
In the embryo, the duct leading from the mesonephros to the cloaca. From it develop the ductus epididymis, ductus deferens, seminal vesicle, ejaculatory duct, ureter, and pelvis of the kidney.
Synonym: mesonephric ductomphalomesenteric
pertaining to the umbilicus and mesentery.
omphalomesenteric duct
the duct which connects the yolk sac with the embryonal alimentary tract in vertebrates.
omphalomesenteric vessels
arteries and veins carrying blood between the embryonal circulation and the yolk sac; destined to contribute to the blood supply to the gut and the portal venous drainage.