Aging Changes in Organs - Tissue - Cells
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Description
All vital organs begin to lose some function as you age. Aging changes have been found in all of the body's cells, tissues and organs and these changes affect the functioning of all body systems.
Living tissue is made up of cells. There are many different types of cells, but all have the same basic structure. Tissues are layers of similar cells that perform a specific function. The various kinds of tissues group together to form organs.
There are four basic types of tissue:
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Connective tissue supports other tissues and binds them together. This includes bone, blood, and lymph tissues in addition to the tissues that give support and structure to the skin and internal organs.
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Epithelial
tissue provides a covering. The skin and the linings of the various passages inside the body are made of epithelial tissue.
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Muscle tissue includes two types of tissue:
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Striated muscles, such as those that that move the skeleton (also called voluntary muscle)
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Smooth muscles, such as the muscles that surround the stomach
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Nerve tissue is made up of nerve cells (neurons) and is used to carry "messages" to and from various parts of the body. The brain is made of nerve tissue.
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