Salivary Glands Flashcards
Where is the parotid gland located
back of mandible in front of the ear and eners mouth behind the max 2nd molar
what nerve passes through the parotid
CN 7
intralobular ducts
round collection of cells made of columnar epithelium
What gland is located on the floor of the mouth by the mandible
submandibular
where does the submandibular duct enter the mouth?
lateral to the frenulum of the tongue
what gland is composed of only serous cells
parotid
serous cells characteristics ?
watery, stains pink, globular
mucous cells characteristics
viscous, clear, rod like, mucous coat
What gland is described as beong located under the tongue
sublingual
the sublingual has more serous cells than mucous. T/F?
True
typical protein-secreting cells, with rounded nuclei?
serous cells
what can be found in the basal third , and the apex of mucous cells (2 different answers)
basal- accumulation of RER
apex- protein rich secretory granules
Describe the nuclei of mucous cells
flattened with condensed chromatin at base of cell
what type of cells are intercalated disk lined with
cuboidal epithelium
what type of cells are striated disk lined with
columnar epi.
what is the role of the striated duct?
makes them more hypotonic
kallikrein prodcustion
and bicarboanate production
what allows the striated duct to make cells more hyotonic?
they have infoldings with mitochondria to allow them to resorb sodium from lumen making saliva slightly hypotonic
kallikrein ?
serum protease
breaks down very specific proteins with a high molecular weight to produce bradykinin, a protein that helps blood vessels dilate
role of bicarbonate in saliva
buffer
this immunoglobulin acts as a immunologic defense mechanism against pathogens in oral cavity
IgA
Histatin ?
yeast protection
antimicrobrial, anti bacterial component in saliva
