human
What are the different kinds of cells in the body?
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The main types of cells in the human body are epithelial, muscle, connective tissue, nerve, and blood cells. Epithelial cells line the surfaces of organs and tissues, including the skin, digestive tract, respiratory system, urinary system, and reproductive system. Muscle cells contract to move muscles, while connective tissue cells provide support and structure for other cells and tissues. Nerve cells carry electrical signals between the brain and other parts of the body, while blood cells transport oxygen and nutrients throughout the body.