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Topic: Submandibular gland


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  CHAPTER 49: THE SUBMANDIBULAR REGION
The innervation of the gland from the submandibular ganglion is similar to that of the submandibular gland.
The submandibular ganglion lies on the lateral surface of the hyoglossus muscle, medial to the mylohyoid muscle, superior to the submandibular duct and hypoglossal nerve, and inferior to the lingual nerve, from which it is suspended by several branches.
The lingual nerve, the deep process of the submandibular gland and the submandibular duct, and the hypoglossal nerve pass deep to the posterior border of the mylohyoid.
www.dartmouth.edu /~humananatomy/part_8/chapter_49.html   (1068 words)

  
 Submandibular gland - Wikipedia, the free encyclopedia
Because the glands are branched, and because the tubules forming the branches contain secretory cells, submandibular glands are classified as branched tubuloacinar glands.
Further, because the secretory cells are of both serous and mucous types, the submandibular gland is a mixed gland, though it is mostly serous.
The submandibular gland accounts for 80% of all salivary duct calculi, possibly due to the different nature of the saliva that it produces and that its duct is up-sloping.
en.wikipedia.org /wiki/Submandibular_gland   (549 words)

  
 Submandibular Region, Nasal & Oral Cavities - Dissector Answers
The 5 cm long submandibular duct arises from the deep part of this gland and passes forward and medialward to open in the sublingual caruncle at the side of the lingual frenulum.
Sublingual gland: This is the smallest salivary gland.
The facial artery is deep to the superficial portion of the submandibular gland.
anatomy.med.umich.edu /head/submand_ans.html   (2158 words)

  
 Salivary Gland Tumors
The second largest pair of glands are the submandibular glands, which sit just on the inside of the jaw in front of the angle of the mandible.
In the submandibular gland 50% of the growths are benign, with 50% being malignant.
Should a submandibular gland be removed for benign or malignant disease, the risks to surrounding structures are essentially the same, although risks to the adjacent lingual and hypoglossal nerves certainly are higher in the case of malignancy.
www.drlouryent.com /Pages/PatientServices/1061.html   (1933 words)

  
 Salivary Duct Stones
The parotid glands are located directly under the skin in front of the ear covering the masseter, which is one of the chewing muscles.
The submandibular glands are located slightly farther behind the sublingual glands, and have a fairly long duct that drains through a small opening under the front of the tongue just adjacent to the mid-line.
Submandibular gland stones tend to have higher concentrations of calcium, which explains why 85% of submandibular stones are visible on x-ray, whereas only 15% of parotid duct stones are visible.
www.drlouryent.com /Pages/PatientServices/1059.html   (1604 words)

  
 Articles from plastic surgeons rhode island
Submandibular contouring for aesthetic indications is encircled in controversy, belied predominately by the risk for nerve injury.
The average distance from the mentum to the submandibular gland was 5.2 cm (range 4.8-6.0 cm); thyroid notch to submandibular gland was 3.4 cm (range 2.4-4.0 cm); and hyoid to submandibular gland was 2.5 cm (range 1.9-3 cm).
Submandibular gland capsule with platysma retracted superficially and laterally with extensive incision for anatomic demonstration in the cadaver.
www.drsullivan.com /submandibular_article.html   (2241 words)

  
 Lab Manual - Submandibular Region, Nasal & Oral Cavities
Examine the sublingual gland, the lingual and hypoglossal nerves, the submandibular ganglion and submandibular duct.
Sublingual gland, the smallest of the salivary glands.
Submandibular duct courses anteriorly against the medial surface of the sublingual gland and opens onto the sublingual caruncle.
www.med.umich.edu /lrc/coursepages/M1/anatomy/html/head/submand.html   (1386 words)

  
 eMedicine - Salivary Gland Tumors, Minor, Benign : Article by Fadi Chahin, MD
The remaining tumors arise in the submandibular gland (8%) and minor salivary glands (22%).
Histologically, the lesion is composed of a diffused, well-organized lymphoid tissue and lymphocytic interstitial infiltrate with obliteration of the acinar pattern.
Submandibular gland surgery is performed with the patient under general anesthesia with endotracheal intubation.
www.emedicine.com /med/topic2790.htm   (4467 words)

  
 Salivary Glands & Thyroid
A submandibular open biopsy is performed as an excision of the gland, with identification and preservation of the lingual nerve.
90% of salivary stones occur in the submandibular gland, and 10% occur in the parotid gland.
Neoplasms of the salivary glands usually occur in the major salivary glands, with 80% occurring in the parotids, and almost 20% occurring in the submandibular glands.
www.utmb.edu /oto/MedicalStudent.dir/sal-gland-thyroid.htm   (1238 words)

  
 Submandibular Gland Sialolith in a Renal Transplant Recipient:  A Case Report - Introduction
Sialolithiasis is a common disease of the salivary glands and is caused by formation of sialoliths.
In addition the submandibular duct ascends when the body is upright, it bends at the posterior edge of the mouth, and its course is long and sinous.
Because of the horseshoe-shape of the body of the gland, this duct has a bow-shaped course in the cranial direction, which means there is a particular tendency in this gland to secretory congestion and concrement formation.
www.thejcdp.com /issue023/soares/02soares.htm   (575 words)

  
 Submandibular Gland Excision Frequently- Asked Questions * Otolaryngology Houston   (Site not responding. Last check: 2007-11-03)
The most common reason for removing a submandibular gland is chronic infection that occurs if the ducts that drain saliva become blocked with  a stone.  Other indications for surgery include benign tumors, such as pleomorphic adenomas.  Whereas 80% of parotid gland tumors are benign, in the submandibular gland, 66% of tumors are malignant.
The submandibular gland is resected under a general anesthetia.  A cut around two inches long is made in the upper part of the neck just below the lower jaw.
Numbness of the tongue - the lingual nerve is rarely bruised.  Since it is the nerve that supplies feeling to the side of the tongue bruising results in a tingly or numb feeling in the tongue, similar to the sensation after having an injection at the dentist.
www.ghorayeb.com /SubmandibularResectionFAQ.html   (597 words)

  
 Primary epidermoid carcinoma of the submandibular salivary gland
The clinical diagnosis was primary epidermoid carcinoma of the submandibular salivary gland.
The diagnosis was undifferentiated carcinoma of the submandubular gland.
This patient was interesting because of the rarity of the primary epidermoid carcinoma of the submandibular gland, the involvement of the facial nerve, and the advanced stage.
dermatology.cdlib.org /111/correspondence/salivary/jellouli.html   (638 words)

  
 Sialolithiasis: an unusually large submandibular salivary stone   (Site not responding. Last check: 2007-11-03)
The majority of sialoliths occur in the submandibular gland or its duct and are a common cause of acute and chronic infections.
Submandibular sialolithiasis is more common as its saliva is (i) more alkaline, (ii) has an increased concentration of calcium and phosphate, and (iii) has a higher mucous content than saliva of the parotid and sublingual glands.
Almost half of the submandibular calculi lie in the distal third of the duct and are amenable to simple surgical release through an incision in the floor of the mouth, which is relatively simple to perform and not usually associated with complications.
www.nature.com /bdj/journal/v193/n2/full/4801491a.html   (2692 words)

  
 RISKS AND COMPLICATIONS OF SUBMANDIBULAR GLAND EXCISION   (Site not responding. Last check: 2007-11-03)
Submandibular gland excision is an operation to remove the submandibular gland.
It is performed for cases of chronic submandibular gland infection, salivary duct stones, or tumors.
However, an immediate or delayed weakness of the corner of the mouth is rare and may occur as the result of swelling or injury of this nerve branch.
members.aol.com /orlmd/risksubman.htm   (429 words)

  
 Core Curriculum Syllabus: Salivary Gland Disorders
The gland is drained bluntly by inserting a clamp and spreading in the direction of the nerve.
Circumscribed - obstruction and cystic dilatation of sublingual gland or submandibular duct.
Submandibular and minor salivary gland tumors have increasing percentage of malignancy, i.e., the smaller the gland, the greater the likelihood of malignancy.
www.bcm.edu /oto/studs/saliv.html   (574 words)

  
 eMedicine - Submandibular Sialadenitis/Sialadenosis : Article by Adi Yoskovitch, MD, MSc   (Site not responding. Last check: 2007-11-03)
The duct of the submandibular gland, also known as the Wharton duct, exits the gland from the deep lobe, passing through the floor of the mouth, and opening in close proximity to the lingual frenulum.
Acute sialadenitis: Acute sialadenitis is an acute inflammation of a salivary gland.
Chapman AH: The salivary glands, pharynx and esophagus.
www.emedicine.com /ent/topic598.htm   (3578 words)

  
 Salivary gland tumors   (Site not responding. Last check: 2007-11-03)
A salivary gland tumor is an uncontrolled growth of cells that originates in one of the many saliva-producing glands in the mouth.
The parotid glands, submandibular glands and sublingual glands are the large, paired salivary glands.
The submandibular glands are located on the floor of the mouth, with one on the inner side of each part of the lower jaw, or mandible.
www.healthatoz.com /healthatoz/Atoz/ency/salivary_gland_tumors.jsp   (1198 words)

  
 Radiology, University of Rochester Medical Center
The submandibular gland duct extends from the floor of the mouth to the hyoid bone and is separated from the parotid by the stylomandibular ligament.
Histologically, the submandibular gland is composed predominantly of serous acini (90%) with a mucinous acinar component (10%) [1,2].
The obstruction and stricture by stone or calculus in the submandibular duct may result in chronic infection of the duct (sialodochitis) and of the gland (chronic sialadenitis), and secondary enlargement of the spumoni gland.
www.urmc.rochester.edu /smd/Rad/neurocases/Neurocase98.htm   (471 words)

  
 Nikon MicroscopyU: Confocal Image Gallery - Human Submandibular Gland
The submandibular gland, one of three human saliva glands, produces about two thirds of the average daily output of one liter of saliva.
The mixed alveoli (20 percent of human submandibular gland cells) of the submandibular gland are composed of serous cells topping mucous cells and in humans, purely mucous alveoli are not common.
The parasympathetic nerve fibers from the submandibular ganglion innervate this salivary gland.
www.microscopyu.com /galleries/confocal/humansubmandibulargland.html   (432 words)

  
 Tumors of Major Salivary Glands: Submandibular Gland -- American Head and Neck Society
When dealing with submandibular gland carcinoma, CT can also help define the relationship of the tumor to the mandible and other oral structures and may delineate lymph node metastases that are not appreciated clinically.
When malignant diagnosis confirmed only after gland excision and the primary tumor is small and does not extend to the capsule of the gland.
Submandibular gland tumors, adverse histologic factors and therapeutic implications.
www.headandneckcancer.org /clinicalresources/docs/submand.php   (977 words)

  
 Excision Submandibular Gland
A blocked submandibular gland is a benign floor of mouth process (similar to a benign cyst), which results from an obstructed salivary gland.
Typically, blocked submandibular glands are removed through a 5 cm (2 1/2 inches) incision in the submandibular crease (neck).
Typically the lingual nerve is not involved in the excision of the submandibular gland, but still it is a risk.
www.johnconigliomd.com /Pages/PatientServices/796.html   (717 words)

  
 Lab Exercises- Salivary Glands
This is a large salivary gland that consists of cells that are largely serous.
Clusters of gland cells are organized in Secretory acini.
Slide 30 is a section of the submandibular gland stained with Masson's trichrome and Alcian yellow.
www.cytochemistry.net /microanatomy/digestive/salivary_glands.htm   (339 words)

  
 Parotid and Submandibular Gland Surgery
Submandibular calculi lying anterior in duct  - remove by passing a suture behind the calculus  to prevent it slipping further down the duct.
It is possible to relocate the parotid ducts into the hypopharynx +/- bilateral submandibular gland excision or relocation to the back of the tongue.
Excision of the sublingual glands may also aid this, as these are a major source of pooled saliva at rest.
www.maxfaxsho.co.uk /index_files/Page4704.htm   (384 words)

  
 UpToDate Salivary gland tumors
Other sites include the submandibular gland (8 to 15 percent), the sublingual gland (less than 1 percent), and the minor salivary glands, which are most densely concentrated in the hard palate (5 to 8 percent), but present throughout the upper aerodigestive tract.
As a general rule, the smaller the salivary gland in adults, the higher the probability that a neoplasm arising in such a gland will be malignant [1].
Malignant tumors comprise 15 to 25 percent of all parotid tumors, 37 to 43 percent of submandibular gland tumors, and over 80 percent of minor salivary gland tumors [2,3].
patients.uptodate.com /topic.asp?file=head_can/7400   (582 words)

  
 Submandibular Gland
Note the predominance of serous-secreting acini in the submandibular gland.
In several types of exocrine glands there are two subclasses of intralobular ducts, intercalated ducts and secretory ducts.
So the over all color of the gland will be dark and light patches because of the dark color of the serous cells and light color of the mucous cells.
www3.umdnj.edu /histsweb/lab18/lab18submandibular.html   (505 words)

  
 News & Headlines: New Surgical Approach for Removal of the Submandibular Gland
"We introduce a new surgical approach for excision of the submandibular gland indicated in the chronically inflamed salivary gland with or without calculus and benign mixed tumor of the submandibular gland,"stated K.H. Hong and colleagues at the Chonbuk National University in South Korea.
The researchers reviewed 31 cases of submandibular gland removal through the intraoral approach, and analyzed surgical technique and morbidity.
The temporary lack of lingual nerve function or limited tongue movement were documented as some of the early postoperative discomforts, all of which were diminished in a reasonable amount of time in all patients involved.
www.otohns.net /default.asp?id=7524   (284 words)

  
 Salivary gland - Wikipedia, the free encyclopedia
Salivary glands are innervated by the parasympathetic and sympathetic branches of the autonomic nervous system.
Salivary glands are innervated, either directly or indirectly, by the parasympathetic and sympathetic arms of the autonomic nervous system.
The parotid gland receives its parasympathetic input from the glossopharyngeal nerve (CN IX) via the otic ganglion, while the submandibular and sublingual glands receive their parasympathetic input from the facial nerve (CN VII) via the submandibular ganglion.
en.wikipedia.org /wiki/Salivary_gland   (452 words)

  
 Submandibular gland
The submandibular gland is one of the salivary glands, responsible for producing saliva.
Parasympathetic innervation of the submandibular gland is from the salivary nucleus via the facial nerve with synapses in the submandibular ganglion.
The Submandibular Gland secretes saliva into ducts called 'Warton's Ducts'.
www.mrsci.com /Digestive-System/Submandibular_gland.php   (67 words)

  
 Bilateral submandibular gland infection presenting as Ludwig's angina: First report of a case Ear, Nose & Throat ...
CT revealed the presence of bilateral multiple calculi along the floor of mouth, dilated Wharton's ducts proximal to the calculi, and enlarged submandibular glands with dilated ducts within the glands (figure 1).
A diagnosis of Ludwig's angina was made on the basis of bilateral submandibular sialadenitis with sialolithiasis, which had caused the edema in the floor of mouth and the tongue.
[8] The classic description of Ludwig's angina is an inflammation of the cellular tissues that begins around the submandibular gland and subsequently involves the floor of mouth and the neck.
www.findarticles.com /p/articles/mi_m0BUM/is_4_80/ai_75176933   (875 words)

  
 Autonomic nervous control of venous pressure and secretion in submandibular gland of anesthetized dogs -- Lung 275 (2): ...   (Site not responding. Last check: 2007-11-03)
Measurement of submandibular arterial flow, venous flow, hilar venous pressure, pressure in the extraglandular segment of the outflow vein, and external jugular venous pressure.
the venous ringlike structure in the hilar region of the gland.
The submandibular duct was retrogradely cannulated and the catheter was connected to a bottle in which the secreted saliva
ajpgi.physiology.org /cgi/content/full/275/2/G331   (6757 words)

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