| A | B |
| Function of the Muscular System | create body heat, moves your bones (skeletal system) |
| Cardiac Muscle | found in the heart only, involuntary |
| Smooth Muscle | found in internal organs, involuntary |
| Skeletal Muscle | attached to bones, tires easily, voluntary |
| How do muscles move your bones? | They PULL |
| How do muscles work in pairs? | One muscle contracts as the other relaxes |
| Function of the Nervous System | sends impulses throughout the body and responds to changes in our environment |
| Parts of the nervous system | brain, spinal cord and nerves |
| Impulse | Electrical messages sent throughout the body |
| Stimulus | change in the environment (ex: change in temperature outside) |
| Response | Your action because of a stimulus (shivering) |
| Voluntary actions | You control these actions |
| Neuron | cell that sends and receives impulses |
| Cerebrum | part of the brain that controls thinking and feeling |
| Cerebellum | Part of the brain that controls balance and coordination |
| Medulla | Part of the brain that controls involuntary processes and vital organs, we cannot survive without this part of the brain |