EPITHELIUM

• Mesothelium outer covering of organs, ie intestine
• Endothelium lining of vessels, ie bowman’s capsule
• Lining of respiratiry

• Cells that make up glands where you can see open duct in center.
• Tubules
• Outer lining of ovary
• Thyroid

• Simple columnar
• Nuclei all line up
• Lining of most of the stomach, intestine. Note these are usually on villi.
• Glands where the duct is not visible because the “swollen” glandular cells occlude it, ie pancrease

• Pay close attn to the flattened nuclei in the apic layer.
• Epidermis
• Mouth
• Esophagus
• Vagina

• Large glandular ducts, seen as an opening in the midst of other tissue
• Sweat glands, seen just below and opening to strat squamous
• Anorectal junction

• Upper layer of columnar cells have nuclei in a row
• Anorectal junction, seen between where goes from strat cuboidal to strat squams
• Largest of glandular ducts

• Will appear strat, but cant be columnar because nuclei are not lined up
• Has large glands within strat.
• Trachea
• Deferens
• Epididymis

• Appears strat, but not cuboidal because apical surface of cells are dome shape not flat as cuboidal would be. Also cells in strat are interposed longitudinal rather than horizontally.
• Bladder
• Ureters
• Urethra

• Random arrangment of cells of even size and shape.
• No free suface.
• Interstitial cells of Leydig of testis
• Islets of Langerhans of pancreas

Category: Anatomy Notes