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The basic tissues of the body include: • Epithelial (Covering) Tissue (See Diagram EP 1):. Epithelial tissue covers the external and internal surfaces, ...
Typology: Summaries
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Tissues are formed from the assemblage of cells and intercellular materials in various proportions in which one component predominates. In nervous tissue as an example, nerve cells predominate while in connective tissues such as Ligaments and Tendons, intercellular fibrous materials predominate. A tissue could therefore be described as comprising cells, which share structural and functional similarities and intercellular materials. In the course of development of the body, cells undergo specialization following which they aggregate, based on functional and structural similarities to form body tissues. This arrangement is responsible for the high level of organization and distribution of labor in the body. When tissues are assembled in various proportions to form a functional entity, an Organ is said to be formed. The organization of tissues within an organ determines the structure as well as the functional capabilities of the organ. There are four main types of tissues within the human body. These are commonly referred to as the Primary (Basic) tissues of the body. The basic tissues of the body include:
The human body performs various functions each of which requires the input of various specialized organs of the body. All body organs which are involved in the execution of a particular body function are assembled together as a body system. This is yet another illustration of the high level of division of labor within the human body.
The generally recognized body systems which will be considered during your basic medical training in years one and two are: