Salivary Glands Flashcards
How would you define salivary glands?
Tubuloacinar, exocrine glands, ducts open into mouth
What are the names of the 3 major salivary glands?
Parotid
Submandibular
Sublingual
Where are the following glands positioned:
1.parotid
2.submandibular
3.sublingual
- Between zygomatic arch and angle of mandible
- Lowest = under hyohyoid muscle
- On the floor of the mouth
What’s the histological structure of a ‘basic’ salivary gland?
Grape shaped
Acini
Ducts
What do acinar cells produce?
Primary secretions
What’s the difference between serous and mucous acinar?
SEROUS
- pizza slices around lumen
- dense layer of secretory granules at the top of cells
MUCOUS
- tubular arrangement
What’s the difference between serous and mucous secretions?
SEROUS
-watery
-high protein
MUCOUS
-viscous
-mucin-rich
What do striated ducts do + how do they do it?
-Modify secretions
-Na+ & Cl- resorption
-K+ & HCO3- secretion
-make primary secretion isotonic->hypertonic
What do minor salivary glands not have which major ones do?
- lack intercalated and striated ducts
What are glands of Von Ebner?
Minor salivary glands in the tongue which secrete serous secretion.
What are the 3 typed of ducts in glands.
- intercalated
- striated
- connecting
What are the functions of saliva (6)
- Digestion
- Antibacterial
- Mineral protection
- Lubricant
- Taste
- Hormone production
Which glands are enclosed in a capsule?
Parotid
Submandibular
How are salivary glands developed?
- proliferation of oral epithelial cells into underlying ectomesenchymal cells
- forms epithelial bud
What’s the name of the secretory tissue in salivary glands?
Paramchyma
