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  2. Epithelium - Wikipedia

    en.wikipedia.org/wiki/Epithelium

    By layer, epithelium is classed as either simple epithelium, only one cell thick (unilayered), or stratified epithelium having two or more cells in thickness, or multi-layered – as stratified squamous epithelium, stratified cuboidal epithelium, and stratified columnar epithelium, [8]: 94, 97 and both types of layering can be made up of any of ...

  3. Gastrointestinal wall - Wikipedia

    en.wikipedia.org/wiki/Gastrointestinal_wall

    In the oesophagus, pharynx and external anal canal the epithelium is stratified, squamous and non-keratinising, for protective purposes. In the stomach, the epithelium is simple columnar, and is organised into gastric pits and glands to deal with secretion. [1] In the small intestine, epithelium is simple columnar and specialised for absorption.

  4. Stratified squamous epithelium - Wikipedia

    en.wikipedia.org/wiki/Stratified_squamous_epithelium

    Examples of non-keratinized stratified squamous epithelium include some parts of the lining of oral cavity, pharynx, conjunctiva of eye, upper one-third esophagus, rectum, vulva, and vagina. Even non-keratinized surfaces, consisting as they do of keratinocytes, have a minor superficial keratinized layer of varying thickness, depending on the ...

  5. Oral mucosa - Wikipedia

    en.wikipedia.org/wiki/Oral_mucosa

    Lining mucosa, nonkeratinized stratified squamous epithelium, found almost everywhere else in the oral cavity, including the: Alveolar mucosa , the lining between the buccal and labial mucosae. It is a brighter red, smooth, and shiny with many blood vessels, and is not connected to underlying tissue by rete pegs .

  6. Simple squamous epithelium - Wikipedia

    en.wikipedia.org/wiki/Simple_squamous_epithelium

    Simple squamous epithelium falls under the physiological category of exchange epithelium due to its ability to rapidly transport molecules across the tissue layer. To facilitate this movement, some types of simple squamous epithelium may have pores between cells to allow molecules to move through it, creating a leaky epithelium.

  7. Tissue membrane - Wikipedia

    en.wikipedia.org/wiki/Tissue_membrane

    The skin is an epithelial membrane also called the cutaneous membrane. It is a stratified squamous epithelial membrane resting on top of connective tissue. The apical surface of this membrane is exposed to the external environment and is covered with dead, keratinized cells that help protect the body from desiccation and pathogens.

  8. Table of epithelia of human organs - Wikipedia

    en.wikipedia.org/wiki/Table_of_epithelia_of...

    Stratified squamous, non-keratinized superior to Hilton's white line Stratified squamous, keratinized inferior to Hilton's white line - digestive: gallbladder: Simple columnar, non-ciliated - endocrine: thyroid follicles: Simple cuboidal - nervous: ependyma: Simple cuboidal - lymphatic: lymph vessel: Simple squamous: endothelium: integumentary ...

  9. Tissue (biology) - Wikipedia

    en.wikipedia.org/wiki/Tissue_(biology)

    There are many kinds of epithelium, and nomenclature is somewhat variable. Most classification schemes combine a description of the cell-shape in the upper layer of the epithelium with a word denoting the number of layers: either simple (one layer of cells) or stratified (multiple layers of cells).