| A | B |
|---|
| Muscular System | Helps with movement of the body, and within the body. |
| Skeletal System | Supports the body and protects organs and body parts. Structures in this system also make blood cells. |
| Nervous System | Carries electrical messages to all parts of the body to. |
| Endocrine System | Chemical messages are carried from the brain to and from other organs to communicate. |
| Integumentary System | A barrier between inside the body and the outside world, this system also holds the whole body together. |
| Lymphatic System | Made of a clear liquid, lymph, this system collects fluids to return them to the cardiovascular system This system also fights off infection. |
| Cardiovascular System | *The respiratory and circulatory systems working together...The lungs and a network of tubes that carry blood, this system delivers oxygen, glucose, and water, and takes away wastes from every cell. |
| Respiratory System | Collects oxygen for body cells, and gets rid of carbon dioxide. |
| Excretory System | This system gets rid of wastes, and overlaps with respiratory, integumentary, and digestive systems. |
| Digestive System | Breaks down food into tiny particles that can be absorbed into the blood stream. |
| Reproductive System | Provides the ability to reproduce |
| Cell | Basic unit of structure and function of a living thing |
| Tissue | A group of cells that have a simialr structure and act together to perform a specific function |
| Organ | A group of tissues that work together to perform a specific function |
| Organ System | A group of organs working togeter to perform one or more functions |
| Organism | A living thing |
| Repiratory System | Takes in Oxygen for the body cells and releases carbon dioxide from the body cells. |
| Circulatory System | Delivers oxygen, nutrients and chemicals to the body cells |
