Plate 10.212 Sublingual Gland
Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger,
Peer Review Status: Externally Peer Reviewed
Rhesus monkey, glutaraidehyde fixation, H. & E.,
A. 28 x; B. 55 x; C. 222 x.
The sublingual gland is a branched tubuloacinar gland and is a mixed gland composed predominantly of mucous acini. The gland also contains a variable number of acini containing serous cells and serous demilunes in different parts of the gland. The mucous gland cell secretes viscid mucigen, which is rich in sulfated polysaccharide. The serous cells secrete a watery product rich in sulfated glycoproteins.
Note the large duct with its stratified columnar epithelium and other smaller ducts with a simple columnar epithelium.
Characteristically the mucous gland cells have a poorly staining apical cytoplasm, and the nuclei are heterochromatic and flattened against the basal cell membrane.
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