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Unformatted text preview: testes and it deals with secretion and absorption of substances. 3. simple columnar is a single layer of tall column shaped cells. The free surface may have cilia. It lines the gut and uterus. The ciliated epithelia move substance. 3 types of cell junctions Adhering junctions- holds cells together in tissues of the skin, heart, and other organs that are subject to stretching. Gap junctions- line the cytoplasm of neighboring cells. They are open channels for the rapid flow of signals. Tight junctions-link cells that line body surfaces. They keep water-soluble substances from leaking between the cells....
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This note was uploaded on 11/28/2011 for the course BIO 102 taught by Professor Dr.reeses during the Fall '08 term at Alabama A&M University.
- Fall '08