| A | B |
|---|
| Gland | an organ that makes a certain substance |
| Ligaments | Tough bands of tissue that connect bone to bone |
| System | A group of organs working together |
| Voluntary muscle | Muscle that is under our control |
| Neurons | Cells throughout the body that carry signals to and from the brain (nerves) |
| Skeletal system | The system that provides our bodies with support |
| Muscular system | The system in the body that produces movement |
| Involuntary muscle | Muscle that is not under our control |
| Nervous system | The system that is in charge of controlling our muscles |
| Organ | Body tissues that form a working unit, such as a heart or kidney |
| Tendons | Tough bands of tissue that attach muscles to bones |
| Eyes | The sense organ of sight |
| Tissue | A group of cells that all do the same job |
| Nose | The sense organ of smell |
| Tongue | The sense organ of taste |
| Skin | The sense organ of touch |
