Epithelial cells

Melanocytes are melanin-producing neural crest-derived cells located in the bottom layer (the stratum basale) of the skin's epidermis, the middle layer of the eye (the uvea), the inner ear, vaginal epithelium, meninges, bones, and heart found in many mammals and birds. Melanin is a dark pigment primarily responsible for skin color. Once synthesized, melanin is contained in special organelles called melanosomes which can be transported to nearby keratinocytes to induce pigmentation. Thus darker skin tones have more melanosomes present than lighter skin tones. Functionally, melanin serves as pro

cell type

epithelial cell that secrete hydrochloric acid and intrinsic factor

Microvilli (: microvillus) are microscopic cellular membrane protrusions that increase the surface area for diffusion and minimize any increase in volume, and are involved in a wide variety of functions, including absorption, secretion, cellular adhesion, and mechanotransduction.

Enterocytes, or intestinal absorptive cells, are simple columnar epithelial cells which line the inner surface of the small and large intestines. A glycocalyx surface coat contains digestive enzymes. Microvilli on the apical surface increase its surface area. This facilitates transport of numerous small molecules into the enterocyte from the intestinal lumen. These include broken down proteins, fats, and sugars, as well as water, electrolytes, vitamins, and bile salts. Enterocytes also have an endocrine role, secreting hormones such as leptin.

cell type

Podocytes are cells in Bowman's capsule in the kidneys that wrap around capillaries of the glomerulus. Podocytes make up the epithelial lining of Bowman's capsule, the third layer through which filtration of blood takes place. Bowman's capsule filters the blood, retaining large molecules such as proteins while smaller molecules such as water, salts, and sugars are filtered as the first step in the formation of urine. Although various viscera have epithelial layers, the name visceral epithelial cells usually refers specifically to podocytes, which are specialized epithelial cells that reside in

outermost layer of the epidermis

a type of tissue

Anti-microbial epithelial cell of the small intestine

tissue type

deepest layer of the five layers of the epidermis

cell type

a thin, clear layer of skin cells

epithelial tissue in Animal tissue

tissue type

layer of the epidermis

layer of cells in the epidermis

thumb|350px|ThinPrep pap smear with group of normal cervical cells on left and [[HPV-infected cells showing features typical of koilocytes: enlarged (x2 or x3) nuclei and hyperchromasia.]]

tissue type

structure in the cortex and medulla of the thymus

cell line

bacteria covered epithelial cells of the vagina

Brush Border Epithelium

epithelial cell type that occurs at least in mouse and human

Cholangiocytes are the epithelial cells of the bile duct. They are cuboidal epithelium in the small interlobular bile ducts, but become columnar and carbonate-secreting in larger bile ducts approaching the porta hepatis and the extrahepatic ducts. They contribute to hepatocyte survival by transporting bile acids.

thumb|270px|Cytopathology of [[Warthin's tumor, with typical cellular features (and a relatively uncommon binucleated cell). Pap stain. The relatively large size of the oncocytes is seen when comparing to the lymphocyte.]] thumb|290px|Micrograph showing [[apocrine-type metaplasia of the breast with typical oncocytes. H&E stain.]] right|thumb|Oncocytes (left of image), as seen in a renal oncocytoma. [[H&E stain.]] An oncocyte is an epithelial cell characterized by an excessive number of mitochondria, resulting in an abundant acidophilic, granular cytoplasm. Oncocytes can be benign or malignant.