Tissue Structure and Fuctions

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List the four tissue types found in the human body. Describe an example of each type with their function and location. The four main tissues in the human body are connective, epithelium, muscle and nervous tissue. Connective tissue is an abundant nonliving extracellular matrix, located throughout the human body; such as the head, tendons, bone, and many more. It is the most widespread tissue in the human body and is the most durable tissue type. There are so many functions for this tissue, that it is difficult to describe just one. However, its main function is to support and protect. (Connective tissue, 2013) Epithelium tissue lines the body cavities and covers the body’s external surface (skin). It closely attaches to each other to form a protective barrier and is capable of regenerating itself. It has little intercellular material between cells, avascular. It is classified by its number of layers and cell shape. Its major functions are to protect, absorb, filtration, secretion, and sensory reception. (Epithelium tissue, 2013) Muscle tissue anchors, packages, and supports human body organs. Its major function is to contract. It also pumps blood, flushes urine out of the body and is responsible for one to lift weights or play sports, such as swinging a bat. There are three types of muscle tissue; skeletal, cardiac, and smooth. They all have many functions in the human body, but to name a few examples, skeletal is responsible for being able to direct your eyeballs and is found attached to bones. Cardiac tissue is a single nucleus in each cell located in the heart and changes the internal volume of the heart as it contracts. The smooth tissue is also a single nucleus in each cell that contains spindle-shaped cells and is found in the walls of the stomach, uterus and arteries. (Muscle tissue, 2013) Nervous tissue forms nerves in the brain that transmits electrochemical impulses throughout the body. This is because of their long cytoplasmic extensions....
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