Difference between Cilia and Stereocilia

Cilia are the cytoplasmic extensions arising from basal granules lying below the cell membrane. The function of cilia is to move particles, free cells or mucous in a specific direction over the epithelial surface. The surfaces of some hollow organs such as fallopian tubes, bronchioles and small bronchi are lined with ciliated epithelia. 
Stereocilia are long cytoplasmic projections that have no motility. In Epididymis stereocilia are present. Some portion of urethra is lined with stereocilia layer
Cilia vs Stereocilia
Cilia 
cilia
Stereocilia
PSEUDOSTRATIFIED COLUMNAR EPITHELIUM WITH STEREOCILIA (Epididymal duct)
Occur in cells of respiratory and reproductive tracts.
Found in some parts of male reproductive system (Vas deferens and Epididymis) and some portions of Urethra
Arise from the basal  granules
Basal granules are absent
Motile
Non motile
Cilia has 9+2 ultra structure
9+2 ultra structure absent
They taper distally
They are cylindrical
Function: Movement
for more: Function of cilia
Function:  stereocilia in the epididymis are more like the long, absorptive microvilli.  They increase the surface area of the cell, allowing for greater absorption and secretion.

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