ANAT 1010 Chapter Notes - Chapter 3: Tight Junction, Free Surface, Connective Tissue
10 Dec 2017
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Document Summary
A tissue is a group of cells that have a common function and are similar in structure. Epithelial tissue: covers body surfaces, lines hollow organs, cavities and ducts, forms glands. Connective tissue: material found between cells and organs, supports and binds structures together, stores energy as fat, provides immunity to disease. Muscle tissue: provides movement and generation of force. Nerve tissue: cells that generate and conduct nerve impulses, control and coordinate body functions. All tissues are developed from three (embryonic) primary germ layers: endoderm, mesoderm, ectoderm. Tissue derivations: epithelium from all 3 germ layers, connective tissue & muscle from mesoderm, nerve tissue from ectoderm. Epithelial tissue or epithelium: divided into two major types, covering and lining epithelium, epidermis of skin, lining of blood vessels and ducts, lining of respiratory, reproductive, urinary, & gi tract, glandular epithelium, secreting portions of glands. General features of epithelial tissue: ex. Most abundant and most widely distributed tissue in the body.
