Types of Tissues in Multicellular Organisms
The levels of organization in the human body consist of cells, tissues, organs, and organ systems, which we introduced last class. Today, we will focus on tissues.
A tissue is a group of similar cells that perform the same function. The human body contains four basic types of tissue: muscle tissue, nerve tissue, connective tissue, and epithelial tissue. |
Connective TissueConnective tissue provides support for your body and connects all its parts. Tendons, Ligaments and Cartilage are connective tissue as they hold parts of your body together. Surprisingly, bone, fat (called adipose), and blood are all connective tissues as well.
6 Examples of Connective Tissue
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Epithelial TissueEpithelial tissue covers the surfaces and protects them. The largest epithelial tissue is the skin. But it also includes the lining of all your organs. For example your stomach is lined with epithelial cells that replaced often because the stomach’s acid kills them. Other Epithelial cells are shown below and they are classified by shape and layers. Examples: skin and organ linings
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Skin - Many layers
Blood Vessel Lining - 1 layer
Trachea Lining - a couple layers
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