Abstract
This study included- eight healthy volunteer subjects
(6 males and 2 females) all aged above 25 years selected from
E.N.T. outpatient clinic in Bertha University hospital. Under
local anesthesia, biopsies were taken from the lower lip via
a single 1-1.5cm horizontal incision then the mucosa reapposed
by one plain catgut 3/0 suture which healed completely within
five days. The biopsies were then prepared for electron
microscopic examination to study the ultrastructure of the
human labial minor salivary glands. Inside the cells of the
secretory acini are found secretory granules, ribosomes, rough
endoplasmic .reticulum and many mitochondria that were seen
in a healthy condition. The results of this study confirmed that
the minor labial salivary glands consist of secretory cells which
appeared in 3 stages (light, dark and intermediate cells). Our
results indicated that the human minor labial salivary glands are
a good model for studying the physiology and pathology of the
human exocrine glands, so can be used in developing diagnostic
clinical assays.
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