salivary glands


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salivary

 [sal´ĭ-ver-e]
pertaining to the saliva.
salivary glands the glands in the mouth that secrete saliva. The major ones are the three pairs known as the parotid, submaxillary, and sublingual glands (see Plates); there are other smaller salivary glands within the cheeks and tongue. The largest are the parotids, located below and in front of each ear. Saliva secreted by these glands is discharged into the mouth through openings in the cheeks on each side opposite the upper teeth. The submaxillary glands, located inside the lower jaw, discharge saliva upward through openings into the floor of the mouth. The sublingual glands, beneath the tongue, also discharge saliva into the floor of the mouth.



The saliva is needed to moisten the mouth, lubricate food for easier swallowing, remineralize the tooth surface, and provide the enzyme (ptyalin) necessary to begin food breakdown in the preliminary stage of digestion. The salivary glands produce about 1.5 liters of saliva daily.

The salivary glands are controlled by the nervous system. Normally they respond by producing saliva within 2 or 3 seconds after being stimulated by the sight, smell, or taste of food. This quick response is a reflex action.

In mumps (parotitis), the parotids become inflamed and swollen. Occasionally, salivary glands produce too much saliva; this condition is called ptyalism, and is the result of local irritation from dental appliances or of disturbances of digestion or of the nervous system or other causes. Certain diseases, drugs such as morphine or atropine, and nutritional deficiency of vitamin B can result in decreased secretion of saliva.
The salivary glands. From Jarvis, 2000.
salivary gland inclusion disease cytomegalic inclusion disease.

salivary glands

Three pairs of glands that open into the mouth to provide a cleaning, lubricating and digestive fluid. The largest pair, the parotid glands, lie in the cheek in front of the ear. The other two pairs, the sublingual and the submandibular glands are in the floor of the mouth.

salivary glands,

n.pl three pairs of exocrine glands that produce saliva and empty it into the oral cavity. The parotid glands produce serous fluid, the sublingual glands produce mucous fluid, and the submandibular glands produce serous and mucous secretions. See also gland.
salivary glands, von Ebner's,
n.pr the minor secretory glands located at the base of the circumvallate papillae on the posterior dorsal surface of the tongue. Also known as
Ebner's glands.
References in periodicals archive ?
To confirm the presence of a salivary gland stone you'll have a sialogram, in which a dye is injected directly into the blocked duct and an X-ray of the area is taken.
Grossly, the excised salivary gland tissue was received in multiple pieces, with the largest fragment measuring 6 cm in greatest dimension, and appeared yellowish tan and slightly lobulated.
1) It accounts for less than 1% of all tumors that develop in the salivary glands.
In 1994, Baum and his colleagues showed in test-tube experiments that certain viruses can ferry functioning genes into the two primary cell types of the salivary glands, the acinar and ductal cells.
Salagen, which is pilocarpine hydrochloride, works by stimulating the surviving portion of the salivary glands and mucus-secreting tissue sufficiently so that they once again begin to generate saliva.
Salivary glands in PMSF and PBS were added with lysis buffer (1:1) containing 1.
They consist of a mixture of volatile compounds, produced and released from different structures of the male's body, such as rectum, cuticle pores, abdominal pleural glands, the intestine, the anal pouch and salivary glands (Nation 1981, 1989, 1990; Teal et al.
Salivary glands engineered in the lab wet tile mouths of mice after transplantation.
Takashi Tsuji at Tokyo University of Science in Japan, and colleagues, have created tear and salivary glands from stem cells and successfully transplanted them into adult mice.
From an embryological standpoint, the occurrence of salivary gland-like neoplasms in the breast should not be too surprising considering the breast and salivary glands are both modified sweat glands.

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