Salivary glands Flashcards
What are the functions of saliva
Lubricant for mastication, swallowing, speech
Oral hygiene
Oral pH needs to be maintained at about 7.2
Digestive enzymes
What is the flow rate of salvia
0.3-7ml per minute
What are the daily secretions in adults from major and minor glands
800-1500ml
What is the pH range of saliva
6.2-7.4
What are the serous secretion
A amylase - starch digestion
What is the mucous secretion
Mucins for lubrication of mucosal surfaces
What type of secretion is the parotid gland
Serous
What type of secretion is the submandibular gland
Serous and mucous
What type of secretion is the sublingual gland
Serous and mucous
What type of secretion is the minor glands
Mainly mucous
What is the remineralisation in salvia
Ca2+ and PO43-
What is defence of saliva
Mucosa
Palatine tonsils - lymphocyte subsets and dendritic cells - immune surveillance and resistance to infection
Salivary gland
Which glands are constantly active
Submandibular
Subinguinal
Minor glands
What is significant about the parotid gland
Non measurable unstimulated secretion
Becomes main source of saliva when stimulated
What does whole salvia contain
Salivary gland secretions
Blood
Oral tissues
Microorganisms
Food remnants
