The epithelium lining the urinary bladder can be classified as which type?
a. Pseudostratified columnar
b. Simple cuboidal
c. Simple squamous
d. Stratified squamous
e. Transitional
ANS: E
The transitional epithelial cells of the urinary bladder are unusual in that they possess many pro-teinaceous plaques in their plasma membranes. These plaques are added to the cell surface when the cells flatten out during bladder distention; they may also improve the impermeability of the cells to small molecules.
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