Parotid duct

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Parotid duct
Right parotid gland. Deep and anterior aspects. (Parotid duct labeled at center right.)
Dissection, showing salivary glands of right side. (Parotid duct visible at center.)
Latin	ductus parotideus
Gray's	subject #242 1134
MeSH	Stensen's+Duct
Dorlands/Elsevier	d_29/12315033

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Overview

The parotid duct is also known as koslo's duct. Saliva from the parotid gland passes through it to the mouth.

It pierces the buccal fat, buccopharyngeal fascia and buccinator muscle then opens into the vestibule of the mouth opposite the upper 2nd molar tooth. The buccinator acts as a valve which prevents inflation of the duct during blowing. Running along with the duct superiorly is the transverse facial artery and upper buccal nerve, inferiorly is the lower buccal nerve.

Pathology

Blockage, whether caused by salivary duct stones or external compression, may cause pain and swelling of the parotid gland (parotitis)

Eponym

It is named after Niels Stensen (1638-1686), a Danish anatomist credited with its discovery.

Additional images

Outline of side of face, showing chief surface markings.

interlobular duct.

striated duct.

External links

• Diagram at MSU
• ent/178 at eMedicine - Parotid duct injuries
• doctor/2052 at Who Named It

v • d • e General anatomy of head and neck - head
Face/Occiput	Forehead • Eye • Ear • Temple • Cheek • Chin
External nose	Nostril • Nasal septum • Cartilages (Accessory nasal, of the septum, Greater alar, Lateral nasal, Lesser alar, Vomeronasal)  • Olfactory glands
Nasal cavity	Choana • Turbinate • Sphenoethmoidal recess • Ethmoid bulla • Hiatus semilunaris • Ostium maxillare • Inferior meatus • Vomeronasal organ • Paranasal sinus
Mouth/oral cavity	Lip • Philtrum • Jaw • Pterygomandibular raphe
Teeth	Permanent (Incisor, Canine, Premolar, Molar)  • Deciduous
Tongue	Plica fimbriata • Median sulcus • Foramen cecum • Terminal sulcus • Frenulum linguae • Anterior tongue • Posterior tongue
Palate/roof of mouth	Hard palate • Soft palate • Palatine raphe • Incisive papilla • Uvula • Pharyngeal recess • Arches (Palatoglossal, Palatopharyngeal)
Salivary glands	Parotid gland/Parotid duct • Submandibular gland/Submandibular duct • Sublingual gland/Major sublingual duct
Other	fascia (Masseteric fascia, Temporal fascia, Galea aponeurotica) • Scalp

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Acknowledgement and Attribution Regarding Sources of Content

Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .