Submaxillary duct
Encyclopedia
The submandibular duct is one of the salivary ducts. It is about 5 cm. long, and its wall is much thinner than that of the parotid duct
.
It begins by numerous branches from the deep surface of the gland, and runs forward between the mylohyoideus, hyoglossus
, and genioglossus
, then between the sublingual gland
and the genioglossus
, and opens by a narrow orifice on the summit of a small papilla at the side of the frenulum linguæ.
On the hyoglossus it lies between the lingual
and hypoglossal nerve
s, but at the anterior border of the muscle the lingual nerve
passes lateral inferior and medial to the submandibular duct.; the terminal branches of the lingual nerve ascend on its medial side.
It drains saliva from the submandibular gland
s and sublingual gland
s to the sublingual caruncle
at the base of the tongue.
It was initially described by the English anatomist Thomas Wharton
and is sometimes referred to by his name.
This is the duct from which a hungry person, preparing to take a first bite of food, might accidentally eject a spray of salivary fluid, or, alternatively, intentionally do so in a process called "gleaking."
Parotid duct
The parotid duct, also known as Stensen's duct, is the route that saliva takes from the parotid gland into the mouth.It passes through the buccal fat, buccopharyngeal fascia, and buccinator muscle then opens into the vestibule of the mouth next to the maxillary second molar tooth. The buccinator...
.
It begins by numerous branches from the deep surface of the gland, and runs forward between the mylohyoideus, hyoglossus
Hyoglossus
The Hyoglossus, thin and quadrilateral, arises from the side of the body and from the whole length of the greater cornu of the hyoid bone, and passes almost vertically upward to enter the side of the tongue, between the Styloglossus and Longitudinalis inferior....
, and genioglossus
Genioglossus
The genioglossus is a muscle of the human body which runs from the chin to the tongue. The genioglossus is the major muscle responsible for protruding the tongue.-Structure:...
, then between the sublingual gland
Sublingual gland
The sublingual glands are salivary glands in the mouth.They lie anterior to the submandibular gland under the tongue, beneath the mucous membrane of the floor of the mouth.They are drained by 8-20 excretory ducts called the ducts of Rivinus....
and the genioglossus
Genioglossus
The genioglossus is a muscle of the human body which runs from the chin to the tongue. The genioglossus is the major muscle responsible for protruding the tongue.-Structure:...
, and opens by a narrow orifice on the summit of a small papilla at the side of the frenulum linguæ.
On the hyoglossus it lies between the lingual
Lingual
Lingual may refer to:* Rap Crew, LINGUAL, an underground widespread hip-hop group from Berlin, Germany. The Group was founded in 2010 with their former member Freddy K. Their music is based on oldschool features with mixtures of Rap, Funk and Jazz and consists of 4 members, Sam-Which, Kurt...
and hypoglossal nerve
Hypoglossal nerve
The hypoglossal nerve is the twelfth cranial nerve , leading to the tongue. The nerve arises from the hypoglossal nucleus and emerges from the medulla oblongata in the preolivary sulcus separating the olive and the pyramid. It then passes through the hypoglossal canal...
s, but at the anterior border of the muscle the lingual nerve
Lingual nerve
The lingual nerve is a branch of the mandibular nerve , itself a branch of the trigeminal nerve, which supplies sensory innervation to the tongue...
passes lateral inferior and medial to the submandibular duct.; the terminal branches of the lingual nerve ascend on its medial side.
It drains saliva from the submandibular gland
Submandibular gland
The paired submandibular glands are salivary glands located beneath the floor of the mouth. In humans, they account for 70% of the salivary volume and weigh about 15 grams. Unstimulated in humans, the percentage contribution to whole saliva; ~25% Parotid, Submandibular and Sublingual ~ 67% and...
s and sublingual gland
Sublingual gland
The sublingual glands are salivary glands in the mouth.They lie anterior to the submandibular gland under the tongue, beneath the mucous membrane of the floor of the mouth.They are drained by 8-20 excretory ducts called the ducts of Rivinus....
s to the sublingual caruncle
Sublingual caruncle
The sublingual caruncle is a site on either side of the frenulum linguae on the sublingual surface of the tongue. There it denotes the site at which the submandibular gland empties into the oral cavity....
at the base of the tongue.
It was initially described by the English anatomist Thomas Wharton
Thomas Wharton (anatomist)
Thomas Wharton was an English physician and anatomist best known for his descriptions of the submandibular duct and Wharton's jelly of the umbilical cord.-Life:...
and is sometimes referred to by his name.
This is the duct from which a hungry person, preparing to take a first bite of food, might accidentally eject a spray of salivary fluid, or, alternatively, intentionally do so in a process called "gleaking."