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Which salivary gland secretes the most viscous least watery saliva?
submandibular glands
As compared with the parotid, the submandibular glands (comprising both serous and mucous acinar cell types) secrete a more viscous, mucin-rich saliva. They contribute predominantly (65%) to the unstimulated saliva secretion, and less (35%) to saliva under stimulated conditions.
What gland releases viscous mucin?
Fluid Secretion by Airway Submucosal Glands Submucosal glands contain serous tubules, where active salt secretion into the gland lumen creates a small osmotic gradient driving water transport across a water-permeable epithelium, as well as mucous cells and tubules, where viscous glycoproteins are secreted.
What glands have watery secretions?
Serous glands produce a watery secretion; sweat glands of mammals are of this type. Sebaceous glands secrete oil, ceruminous glands secrete wax, mammary glands secrete milk, poison glands secrete various toxins, and scent glands secrete a variety of odoriferous substances.
What gland secretes the most saliva?
parotid glands
Major Salivary Glands. The major salivary glands are the largest and most important salivary glands. They produce most of the saliva in your mouth. There are three pairs of major salivary glands: the parotid glands, the submandibular glands, and the sublingual glands.
Which salivary gland produces amylase?
The two parotid glands are major salivary glands wrapped around the mandibular ramus in humans. These are largest of the salivary glands, secreting saliva to facilitate mastication and swallowing, and amylase to begin the digestion of starches.
What do submucosal glands secrete?
The submucosal glands contain serous tubules and acini that secrete salt, water, and various antimicrobial proteins. The serous secretions pass through mucous tubules, where viscous glycoproteins are added, and then into a collecting duct and onto the airway surface.
What do Seromucous glands secrete?
A gland with cells that secrete a fluid intermediate between a watery and a more viscous mucoid substance.
What does submandibular gland secrete?
The mucous cells are the most active and therefore the major product of the submandibular glands is saliva which is mucoid in nature. Mucous cells secrete mucin which aids in the lubrication of the food bolus as it travels through the esophagus.
Which salivary glands secrete amylase?
The two parotid glands are major salivary glands wrapped around the mandibular ramus in humans. These are largest of the salivary glands, secreting saliva to facilitate mastication and swallowing, and amylase to begin the digestion of starches.