Simple columnar epithelium

Differential diagnosis: It can be confused with other epithelium types such as squamous and cuboidal epithelium. Note that such epithelia have cells which are either flat (squamous) or isodiametric (cuboidal). Transitional epithelia have squamous cell type on top when there is no distension as in urinary bladder. The transitional epithelium however is never simple (i.e. one layer thick) and it has more than one shape lying on the basement membrane.

Roll over mouse Diagnostic Features: a. Tissue may be hollow or compact b. Consists of cells which are tall but not wide. c. One cell layer on top of basement membrane. d. Make certain that epithelium is being examined and not the connective tissue below it under the basement membrane. Examples include gallbladder, the whole of GIT and glands, urethra, vas, prostatic ducts and tubules, bulbourethral and greater vestibular glands and germinal epithelium of ovary

Draw your own section here and make your diagnosis by data base selection below

Level 1: Select hollow or compact
Level 2: Select epithelial tissue from list of sclerous, muscular, connective organ-glands and nervous tissues
Level 3: Select simple since only one cell layer can be seen on basement membrane
Level 4: Select columnar since all cells are taller than they are wide.

Do you think this is a section of the gastrointestinal tract, male reproductive tract, urethra or gallbladder?

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