submandibular duct

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    The submandibular duct (also Wharton's duct or historically submaxillary duct) is one of the salivary excretory ducts. It is about 5 cm long, and its wall is much thinner than that of the parotid duct. It drains saliva from each bilateral submandibular gland and sublingual gland to the sublingual caruncle in the floor of the mouth.


    Structure



    The submandibular duct arises from deep part of submandibular gland, a salivary gland. It begins by numerous branches from the superficial surface of the gland, and runs forward between the mylohyoid, hyoglossus, and genioglossus muscles. It then passes between the sublingual gland and the genioglossus and opens by a narrow opening on the summit of a small papilla (the "sublingual caruncle") at the side of the frenulum of the tongue. It lies superior to lingual and hypoglossal nerves.


    = Variation

    =
    The submandibular duct may be duplicated on one side or both sides, creating an accessory submandibular duct. Rarely, it may not perforate into the mouth.


    Function


    The submandibular ducts drain saliva from the submandibular and sublingual glands to the sublingual caruncles in the floor of the mouth


    Clinical significance




    = Sialolithiasis

    =
    The submandibular duct may be affected by stones, known as sialolithiasis. These may grow large, requiring surgery to remove. Simple palpation may be used to identify the location of any stones before surgery.


    = Imperforate

    =
    Rarely, the submandibular duct may not perforate into the mouth. Surgery may be used to repair this birth defect.


    = Drooling

    =
    The exit of the submandibular gland into the mouth may be realigned in patients who drool. This redirects the exiting saliva away from the vestibule and the lips. This surgery has a fairly high success rate. Rarely, the submandibular gland may need to be removed on one or both sides.


    History


    The submandibular duct was initially described by the English anatomist Thomas Wharton ( 1614-73) and is sometimes referred to by his name.


    References


    This article incorporates text in the public domain from page 1135 of the 20th edition of Gray's Anatomy (1918)


    External links


    Anatomy figure: 34:03-05 at Human Anatomy Online, SUNY Downstate Medical Center
    MedicalMnemonics.com: 329

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Submandibular duct - Wikipedia

The submandibular duct arises from deep part of submandibular gland, a salivary gland. It begins by numerous branches from the superficial surface of the gland, and runs forward between the mylohyoid, hyoglossus, and genioglossus muscles.

Submandibular duct | Radiology Reference Article - Radiopaedia.org

Apr 6, 2023 · The submandibular duct (also known as Wharton's duct) allows the passage of saliva from the submandibular gland into the oral cavity. The duct emerges from the deep part of the submandibular gland (within the sublingual space ) on its medial surface, before coursing forwards to open at the sublingual papilla at either side of the base of the ...

Submandibular Duct: Function, Anatomy, Common Conditions

Oct 9, 2024 · The submandibular duct, called Wharton’s duct, is the submandibular gland’s main excretory duct. It drains saliva from the submandibular gland into the floor of the mouth at the base of the tongue.

Submandibular Gland: Anatomy, Function, Conditions - Verywell …

Dec 13, 2024 · The submandibular duct, also called the Wharton's duct, is the excretory duct of the gland. It drains saliva from the glands at the base of the tongue. The blood supply to the gland comes from the facial artery and lingual artery. The parasympathetic and sympathetic nervous systems regulate the salivary glands.

Anatomy, Head and Neck, Submandibular Gland

Dec 11, 2022 · The submandibular gland’s main excretory duct is the Wharton duct. This duct has been measured to be approximately 5 cm long and 1.5mm in diameter. The Wharton duct originates at the submandibular gland hilum and then travels around the posterior portion of the mylohyoid muscle.

Anatomy of Submandibular Gland and Duct

Echostructure: the submandibular gland is more hypoechoic than the parotid gland. Appearance: triangular shape with a posterior base. Rarely seen are normal intraglandular ducts. With stimulation (sialogogue), visualization may be easier.

Submandibular Sialadenitis and Sialadenosis - StatPearls - NCBI Bookshelf

Aug 8, 2022 · Saliva drains from the submandibular glands into the mouth via Wharton duct, which courses between the sublingual gland and hyoglossus muscle, opening near the frenulum on the floor of the mouth. Parasympathetic stimulation increases saliva secretion, while sympathetic stimulation reduces it.

Submandibular duct - e-Anatomy - IMAIOS

The submandibular duct (ductus submaxillaris; Wharton’s duct) is about 5 cm. long, and its wall is much thinner than that of the parotid duct.

Submandibular Duct - an overview | ScienceDirect Topics

The submandibular duct (see Fig. 5), also known as Wharton duct, transports saliva from the submandibular gland to the sublingual papilla located behind the incisors. In the anterior portion of the floor of the mouth, the duct is located immediately below the mucosa.

Submandibular Gland Excision | UMass Memorial Health

The submandibular glands are 2 of the glands that make saliva. They lie just below each side of the jaw. Saliva flows from the glands to the mouth through a small duct. This duct can become blocked. This may be due to small deposits (called stones) in the gland. Or it may be from narrowing of the duct. More rarely, a tumor forms in a gland.