Body Systems

3. Enables movement of the body and internal organs; skeletal muscles and tendons.
5. Protects and supports body organs and provides a framework the muscles use to support movement.
7. The network of nerve cells and fibers that transmits information through nerve impulses between parts of the body.
8. Breaks down food into absorbable units that enter the blood for distribution to body cells.
11. Plays a role in the body defenses.
12. Consists of glands that control many of the body's activities by producing hormones.

1. System of organs involved in producing offspring.
2. A complex response system that protects the body from bacteria, viruses, and other foreign substances.
4. System responsible for taking in O2 and releasing CO2 between the body and external environment.
6. Consists of the skin, mucous membranes, hair, and nails.
9. Transports oxygen, waste, nutrients, hormones, heat, etc. around the body.
10. Removes waste, excess water, CO2, and harmful or unneeded materials.