Body Systems

3. the system by which ingested food is broken down into forms that can be absorbed and used or excreted.
7. a system in the body responsible for movement.
8. a group of cells that have a similar structure and act together to perform a specific function.
10. the network of nerve cells and fibers that transmits nerve impulses between parts of the body
11. materials that are not needed by the body and are excreted.
12. a collection of tissues joined in a structural unit to serve a common function

1. the system that circulates blood through the body.
2. substances that provide nourishment essential for growth and the maintenance of life.
4. the system that removes waste from the body and controls water balance.
5. the system responsible for taking in oxygen and expelling carbon dioxide using the lungs
6. the body's defense against infectious organisms and other invaders.
9. a group of organs that work together to perform one or more functions.