Saliva Flashcards
why is saliva hypotonic?
Salivary duct cells reabsorb Na+ & Cl- in exchange for K+ and HCO3
Why is Saliva a hyposmolar?
b/c reabsorption of water by striated duct cells is less than reabsorption of Na+
What nerve innervates the salivary glands of the palate ?
CN 7
which salivary glands care only mucus secreting?
palatine salivary gland (submucosa)
What are the only serious glands?
Von Ebner’s & Parotid gland
How would the parotid differ from sublingual (staining/histology) or mucous/serous gland
foamy dark nuclei
Serous demilunes are in which gland
Sublingual gland
what are Serous demilunes?
serous cells at the distal end of mucous tubuloalveolar secretory unit of sublingual salivary glands
What do serous demilunes do?
they secrete proteins that contain lysozye, which degrades the bacteria cell walls
What type of cells make up the demilunes of mucous something of sublingual glands
serous cells
what is not derived from Neural Crest
Salivary glands & enamel
describe the Epithelium of striated ducts of salivary ducts
simple columnar epithelium
what parotid salivary glands resemble pancreatic ductal cells?
Serous glands & intercalated ducts
which salivary gland cell is more like proximal convoluted tubule in the kidney?
striated duct cell
what is in the parotid gland
FEAR
