The most important function of the salivary glands?
To maintain the well being of the mouth
Deficiency in saliva would cause? (2)
- Difficulty in eating, swallowing, speech
- Prone to infection and caries
Production rate of saliva per hour?
Component of saliva?
0.5% organic and inorganic
A major salivary enzyme that helps digest carbohydrate?
Amylase or ptyalin
pH of saliva?
Functions of saliva? (6)
- Maintenance of tooth integrity
Provides lubrication and forms a barrier against noxious stimuli and minor trauma?
Formed by calcium binding proteins which serves as a coating over the teeth?
Which content of saliva provides barrier? Serous or mucous?
Salivary content which agglutinates bacteria?
Hydrolyses the cell wall of bacteria?
Binds to iron to make them unavailable to microorganism?
- Low permeability
- Hight resistance to caries
- High surface hardness
Classification of salivary glands according to nature of secretion?
Classification of salivary glands according to behavior?
Classification of salivary glands according to morphology?
Classification of salivary glands according to type of secretory cells? (3)
- Purely serous
- Purely mucous
How do you describe the secretion of saliva?
Bartholin's duct or Rivinian duct
Type of secretion?
- Mixed: 3/4 serous, 1/4 mucous
- 6th week
Type of secretion?
- Mixed: 2/3 mucous, 1/3 serous
- 8-12th week
Type of secretion?
- 4-6th week
It produces the highest amount of saliva?
Intrinsic glands that discharge saliva continuously?
Minor salivary glands
Minor salivary glands are found in what layer?
Lamina propria or submucosa
Function of minor salivary glands?
To keep the mucosa moist
Serous of mucous: labial glands?
Serous or mucous: buccal glands?
Serous or mucous: palatine glands?
Glands found in the anterior fold of tissue in front of palatine tonsil?
Serous or mucous: glossopalatine glands?
3 classes of salivary ducts?
- Intercalated ducts
- Striated ducts
- Terminal excretory ducts
Cells lining the intercalated ducts?
Low cuboidal cells
Cells lining the striated ducts?
Columnar cells with microvilli
What makes the appearance of striated ducts?
Infolded basal membrane
Ducts which makes the secretion a more hypotonic solution?
Ducts found within the connective tissue septa?
Lining cells of the excretory ducts?
Pseudotratified columnar, with stratified columnar
Ducts that alters the electrolyte concentration of saliva?
Cells of the salivary glands? (4)
- Serous cells
- Mucous cells
- Myoepithelial cells
- Serous demilune
Cells that secrete mostly protein?
Serous cells contain ______?
Mucous cells contain ______?
Precursor of amylase?
Cells high in carbohydrates?
The secretory material of mucous cells is contained in?
Octopus like cells surrounding the acini?
It gently squeezes the acini to aid in the secretory process?
Crescent shaped cells capping some mucous acini?
Glands that flushes out debris from the furrow of taste buds?
Von ebners gland
Serous or mucous: von ebner's gland?
Age changes in salivary glands? (4)
- More adipose
- More fibrosis
- Accumulation of lymphocytes
- Presence of oncocytes
True or false. Oncocytes may be found in excretory ducts?
False. Only in acini, intercalated and striated ducts
These cells may give rise to neoplasms?
Epithelial cells characterized by an excessive amount of mitochondria?
Amount of saliva secreted during the night?
True or false. Decrease in saliva flow rate can cause calculus which can result to caries and periodontal disease?
Where does sialoliths frequently occurs?
In submandibular ducts
Saliva-filled cysts formed due to obstruction of salivary ducts?
Retention cysts mostly found in minor salivary glands?
Retention cysts found in the floor of the mouth?
Which is bigger: mucocele or ranula?
Radiographs for salivary glands and ducts?
Serous or mucous: which is darker?