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Major content provider: U.S. National Cancer Institute

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Cells, Tissues, and Membranes: Unit Review

 

Here is what we have learned from this unit:

  • Basically, a cell consists of three parts: the cell membrane, the nucleus, and between the two, the cytoplasm.
  • The cell nucleus contains genetic material and regulates activities of the cell. It determines how the cell will function, as well as the basic structure of that cell.
  • All of the functions for cell expansion, growth and replication are carried out in the cytoplasm of a cell.
  • Tissue is a group of cells that have similar structure and that function together as a unit. Primary types of body tissues include epithelial, connective, muscular, and nervous tissues.
  • Epithelial tissues form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands.
  • Connective tissues bind structures together, form a framework and support for organs and the body as a whole, store fat, transport substances, protect against disease, and help repair tissue damage.
  • Muscle tissue is composed of cells that have the special ability to shorten or contract in order to produce movement of body parts.
  • Nervous tissue is responsible for coordinating and controlling many body activities.
  • Body membranes are thin sheets of tissue that cover the body, line body cavities, and cover organs within the cavities in hollow organs.
  • Two main categories of body membranes are epithelial and connective tissue membranes. Sub-categories include mucous membranes, serous membranes, synovial membranes, and meninges

 

David L. Heiserman, Editor

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Revised: June 06, 2015