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Unformatted text preview: cardiac muscle cells meet, they form an intercalated disc containing gap junctions, which bridge the two cells. Cardiac cells are the only cells that pulsate in rhythm. Smooth muscle consists of cells with a single, centrally located nucleus. The cells are elongated with tapered ends and do not appear striated. Smooth muscle lines the walls of blood vessels and certain organs such as the digestive and urogenital tracts, where it serves to advance the movement of substances. Smooth muscle is called involuntary muscle because it is not under direct conscious control. Figure 1. Three kinds of muscle tissue exist: skeletal muscle, cardiac muscle, and smooth muscle....
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.
- Fall '10