Video narration
What lets your skin, blood, muscles, and nerves work together in one body? A tissue is a group of similar cells working together for a particular job in your body. Look at your own body: skin, blood, muscles, and nerves each show a different kind of work. Epithelial tissue covers body surfaces, so your skin is a familiar example. Connective tissue links and supports parts, but it can also transport materials: bone supports your body, while blood carries materials around it. Muscular tissue contracts, creating movement when you walk, turn, or lift a hand. Nervous tissue carries messages that help coordinate what your body does next. Here's the shift: the names are really four jobs. Epithelial covers; connective supports or transports; muscular moves; nervous carries messages. Together, these different jobs let your skin, blood, muscles, and nerves work as one body, every day.