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Cards In This Set
| Front | Back |
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Proteomics are used to describe
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Tissues
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Different cell types produces different sets of _________
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Mrna's
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The study of tissues is called
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Histology
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There are for primary or major tissue types name them.
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Epithelial
Connective Muscle Nervous |
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Define Intracellular Junctions
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Site of union between cells (connect cell membranes)
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What is the functions of Tight junctions
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Close space between cells, located among cells that form linings, consist of fused membranes.
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What is desmosomes and where are they located
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Specialized junction between cells, which serves as a "spot weld". located among outer skin cells
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What are gap junctions
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Tubular channels between cells that are located in cardiac muscle cells and allow messages to go through quickly
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What characteristics are used to distinguish tissue types
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Organization of cells by layers and presence or absence of matrix, fibers, etc.
Cell shape
Cell size
Function
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What are the general characteristics of epithelial tissue
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Cover organs and the body, Line body cavities, Line hollow organs, free surface at the top, Have a basement membrane-anchors epithelium to underlying connective tissue, Are avascular, Cells readily divide, Cells tightly packed, Cells often have desmosomes
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What are simple squamous and where are they found
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Single layer of flat cells, Substances pass easily through
Line air sacs (alveoli), Line blood vessels, Line lymphatic vessels
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What are simple cuboidal, and where are they found
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Single layer of cube-shaped cells, Line kidney tubules
Cover ovaries, Line ducts of some glands, Lines follicles of the thyroid gland
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What are simple columnar and where are they found
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Single layer of elongated cells, Nuclei usually near the basement, Membrane at same level, Sometimes possess cilia, Sometimes possess microvilli, Often have goblet cells
Line uterus, stomach, intestines
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What is a pseudostratified columnar and where are they found
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Single layer of elongated cells, Nuclei at two or more levels, Appear striated, Often have cilia, Often have goblet cells, Line respiratory passageways-mucus secreting celiated pseudostratified columnar epithelial tissue
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What are stratified squamous and where are they found
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Many cell layers, Top cells are flat due to loss of cytoplasms, Can accumulate keratin, Outer layer of skin
Line oral cavity, vagina, and anal canal
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