Duct (anatomy)

ductductsintercalated ductductusintralobular ductstriated ductDuctalductulesGland ductintralobular ducts
In anatomy and physiology, a duct is a circumscribed channel leading from an exocrine gland or organ.wikipedia
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Muscularis mucosae

muscularis mucosamuscularismuscularis layer


Ductopenia refers to a reduction in the number of ducts in an organ.


Ectosymbiosis is form of symbiotic behavior in which a parasite lives on the body surface of the host, including internal surfaces such as the lining of the digestive tube and the ducts of glands.

Salivary duct

A salivary duct is a duct which brings saliva from a salivary gland to part of the digestive tract.


The opening appears to have served both the olfaction and the intake of the respiratory water similar to the nasopharyngeal duct of hagfishes.

Esophageal gland

Esophageal glandsoesophageal gland
Each opens upon the surface by a long excretory duct.

Vaginal atresia

Vaginal agenesisatresiaCongenital absence of vagina
These interdependent systems are external genitalia, gonadal structures, and internal ductal system.

Oral mucocele

MucoceleMucous cyst of the oral mucosaMucous retention cyst
This occurs because of a ruptured salivary gland duct usually caused by local trauma (damage), in the case of mucous extravasation phenomenon, and an obstructed or ruptured salivary duct (parotid duct) in the case of a mucus retention cyst.

Voynich manuscript

Voynicheponymous manuscriptVoynich-Code
The ductus flows smoothly, giving the impression that the symbols were not enciphered; there is no delay between characters, as would normally be expected in written encoded text.

Endocrine system

endocrineendocrinologicalendocrine organ
The endocrine system can be contrasted to both exocrine glands, which secrete hormones to the outside of the body using ducts and paracrine signalling between cells over a relatively short distance.

Primary biliary cholangitis

primary biliary cirrhosisbiliary cirrhosischolestatic liver disease
It results from a slow, progressive destruction of the small bile ducts of the liver, with the intralobular ducts and the Canals of Hering (intrahepatic ductules) being affected early in the disease.


A metanephridium typically consists of a ciliated funnel opening into the body cavity, or coelom connected to a duct which may be variously glandularized, folded or expanded (vesiculate) and which typically opens to the organism's exterior.

Human brain

brainbrain tissuebrains
A single duct, the cerebral aqueduct between the pons and the cerebellum, connects the third ventricle to the fourth ventricle.