| A | B |
|---|
| spinal cord | relays impulses between the brain and other parts of the body |
| medulla | controls breathing, heartbeat, and other vital body processes |
| cerebrum | controls thought, voluntary movement, memory, and learning, and also processes information from the senses |
| spinal nerves | carry impulses between the spinal cord and body parts |
| cerebellum | controls balance and muscular coordination |
| infancy stage of development | a baby has no understanding that things exist apart from what the baby sees |
| late childhood stage of development | the stage that fifth graders are in |
| early childhood | the stage in which language is mastered |
| middle childhood | the stage in which children begin to understand concepts such as time and geography |
