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serous acini histology slide

serous acini histology slide - click to enlarge


     Serous Alveoli/acini: These are lined by serous cells, which are pyramidal (high cuboldal) In shape with spherical nucleus located in the basal half of cells. Apex of each cell contains zymogen granules and appears acidophilic. The base of each cell appears basophilic due to presence of rich rough endoplasmic reticulum. Serous cells have very fine spaces between them, which are called intercellular canallcull. Star shaped myoepithelial cells are also present between serous cells and basement membrane. Only serous acini are found in parotid and Von-Ebner salivary glands.

Parameter
serous acinus
Mucous acinus
Size of acinus (diameter)
Small
Large
Lumen of acinus
Narrow
Wide
Number of cells/acinus
5-8
> 8
size of cell
High cuboidal (pyramidal) or columnar
Cuboidal or iow columnar
Cell's lateral boundaries (due to secretory canallcull at cell boundaries)
Not clear (due to many canaliculi)
»
Clear (due to less canaliculi)
Shape of nucleus
Rounded
Flattened or oval (but when empty, the nucleus is rounded)
Position of nucleus
Central
Basal
Basal striations In cytoplasm
Basophilic
Less basophilic (rich in glycoproteins and appears vacuolated due to removal of dissolved mucous)
Supranuclear cytoplasm
Many zymogen granules (electron- dense)
Many more mucinogen granules (electron-lucent)
Myoepltheilocytes
Basket cells and less in number
Spindle-shaped cells and more in number
secretion
Serous fluid (watery) rich in enzymes
Mucous fluid (thick or viscid) rich in glycoproteins
Apical microvilli
Present but Irregular
Absent
Amylase activity
Less
More

tags :
Histology Of serous acini
Histology Slide Of serous acini
Histological Slide of serous acini
serous acini Histology
serous acini Histology Slide
serous acini Slide
Slide of serous acini
Normal Histology of serous acini
Histology Of normal serous acini
Human histology serous acini

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