Tissues

                 Tissues

There are four types of tissues in the human body:
• muscle tissue
• nerve tissue
• connective tissue
• epithelial tissue
Muscle tissue is responsible for movement in the body. Think of all the different
ways you can move your body: walking, lifting, writing all involve muscle tissue.
Muscle tissue also allows your body to move in ways you can’t often see. For
example, did you know that your heart contains muscle tissue? The muscle tissue in
your heart allows it to contract so it can pump blood to your whole body.
Nerve tissue transmits messages through the body. It is crucial for our safety because
it tells us how to respond to various changes inside and outside the body. For
example, when you touch something hot, nerve tissues are what detect the heat
and send a warning message to your brain.
Connective tissue holds other tissues together, and protects and insulates organs. This
tissue is fibrous and helps give organs their shape.
Epithelial tissue covers our body and the surface of various internal organs. This
tissue provides a barrier between the organ it is covering and the environment
around the organ. Its functions can include protection, absorption, and secretion.