| A | B |
|---|
| Produces sex cells (sperm and eggs). Produces sex hormones (testosterone, estrogen). Nurtures the unborn baby (fetus). | Reproductive |
| Breaks down food into smaller molecules. Absorbs these nutrients into the body. | Digestive |
| Fights disease. | Lymphatic |
| Cleanses the blood. Rids the body of wastes. Maintains salt and water balance. | Urinary |
| Brings oxygen into the body. Gets rid of carbon dioxide. | Respiratory |
| Transports oxygen, waste, nutrients, hormones, heat, etc... around the body | Cardiovascular |
| Controls body functions using chemicals messengers called hormones | Endocrine |
| Allows for movement of the body. Maintains body position. Provides heat. | Muscular |
| Protects the body from invaders by providing a tough protective layer. Warms the body. Cools the body. | Integumentary |
| Provides Shape and structure to the body. Allows for movement. Protects vital organs. Produces blood cells | Skeletal |
| Receives incoming information (senses). Sends messages to the body about how to react. | Nervous |
