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MH 094hr Parotid
This image was obtained with a 60x oil immersion objective from MH 094. The increased resolution is helpful in viewing secretory cells and ducts of the parotid.
The minimal functional unit of the parotid is a defined by a thin layer of connective tissue.
Serous Cells ( and ) - arranged as acini of pyramidal serous cells. These polarized cells have rough endoplasmic reticulum at their base (basophilic) and secretion granules (eosinophilic) at their apex
- polarized cells with flattened nuclei at the bottom of the cells. These are very lightly stained with a "foamy" appearance (mucous has been extracted).
Intralobular Ducts - two types are found within lobules:
Intercalated Ducts (, and )
- the smallest ducts that insert into and drain individual acini. They are more lightly stained than acini cells and are low cuboidal.
- arise from intercalated ducts. They are columnar with basal striations and are surrounded by capillaries.
(or extralobular ducts)- found outside of lobules
Simple columnar, stratified columnar or stratified cuboidal epithelium.