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  2. Histology - Wikipedia

    en.wikipedia.org/wiki/Histology

    There are four basic types of animal tissues: muscle tissue, nervous tissue, connective tissue, and epithelial tissue. [5] [9] All animal tissues are considered to be subtypes of these four principal tissue types (for example, blood is classified as connective tissue, since the blood cells are suspended in an extracellular matrix, the plasma). [9]

  3. Epithelium - Wikipedia

    en.wikipedia.org/wiki/Epithelium

    Epithelium or epithelial tissue is a thin, continuous, protective layer of cells with little extracellular matrix. An example is the epidermis, the outermost layer of the skin. Epithelial (mesothelial) tissues line the outer surfaces of many internal organs, the corresponding inner surfaces of body cavities, and the inner surfaces of blood vessels.

  4. Epithelioid cell - Wikipedia

    en.wikipedia.org/wiki/Epithelioid_cell

    Epithelioid cells gather around the focus of necrosis, in direct contact with the necrotic masses, forming a kind of boundary zone.. Structurally, epithelioid cells (when examined by light microscopy after stained with hematoxylin and eosin), are elongated, with finely granular, pale eosinophilic (pink) cytoplasm, and central, ovoid nuclei (oval or elongate), which are less dense than that of ...

  5. Tissue (biology) - Wikipedia

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

    Functions of epithelial tissue: The principle function of epithelial tissues are covering and lining of free surface; The cells of the body's surface form the outer layer of skin. Inside the body, epithelial cells form the lining of the mouth and alimentary canal and protect these organs. Epithelial tissues help in the elimination of waste.

  6. Anatomy - Wikipedia

    en.wikipedia.org/wiki/Anatomy

    However, substantially similar structures and tissues are found throughout the rest of the animal kingdom, and the term also includes the anatomy of other animals. The term zootomy is also sometimes used to specifically refer to non-human animals. The structure and tissues of plants are of a dissimilar nature and they are studied in plant ...

  7. Prince Harry and Meghan Markle Have Not Been Invited to Royal ...

    www.aol.com/lifestyle/prince-harry-meghan-markle...

    For Harry’s part, he remains deeply concerned for the safety of Meghan and their children Prince Archie, 5, and Princess Lilibet, 3, and has repeatedly asked his father for help, sources told ...

  8. Krispy Kreme is giving away free doughnuts by the dozen today

    www.aol.com/news/krispy-kreme-giving-free...

    Doing a little napkin math, that means the double-K will be doling out approximately 6,000 free doughnuts per store. This gratis treat is available in Krispy Kreme shops and drive-thrus at each ...

  9. Quizlet - Wikipedia

    en.wikipedia.org/wiki/Quizlet

    Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [ 4 ] As of December 2021, Quizlet has over 500 million user-generated flashcard sets and more than 60 million active users.