Unit 1 Lecture 3 - Tissues

Unit 1 Lecture 3 - Tissues - Second, with regard to the...

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Read Chapter 2, on cell structure, and Chapter 4 which will be the focus of the lecture on Tissues, Wednesday
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Tissues of the body.
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Epithelia are composed of a group of contiguous cells that line a free surface, rest on a basement membrane and are underlain by connective tissue.
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Functions of epithelia include: protection
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Functions of epithelia include: Protection Sensory reception
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Functions of epithelia include: Protection Sensory reception Absorption / secretion
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glands of epithelial origin are classified as: endocrine if their secretions are carried by the blood to other parts of the body or exocrine if their secretions are released, usually by way of ducts, to the surface of the epithelium
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Exocrine glands can be unicellular
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Multicellular exocrine glands can be
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they can be
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they can also be
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Epithelia are classified: First, with regard to the number of cell layers included in the epithelium
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simple
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stratified
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Epithelia are classified: First, with regard to the number of cell layers included in the epithelium
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Unformatted text preview: Second, with regard to the shape of the cells in contact with the free surface Transitional epithelium is misnamed it changes shape depending on stretch of the organ it lines Epithelia are classified: First, with regard to the number of cell layers included in the epithelium Second, with regard to the shape of the cells in contact with the free surface Third, with regard to any specializations of the free surface of the cell Connective tissues Relatively dispersed cells in a surrounding matrix of gel like ground substance and fibers which the cells produce. (Blood is an exception to almost all of the above definition) Loose connective tissue. The stroma of an organ is the supporting framework while the functional cells are called the parenchyma . Adipose tissue is sometimes treated as a separate category of connective tissue. The cells of adipose tissue are adipocytes . Dense connective tissue....
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This note was uploaded on 10/20/2008 for the course PTH AS 2201 taught by Professor Ward during the Fall '08 term at Missouri (Mizzou).

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Unit 1 Lecture 3 - Tissues - Second, with regard to the...

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