| A | B |
|---|
| axon | part of the neuron that passes messages to other neurons |
| motor neuron | carries commands away from the braqin and spinal cord to the muscles |
| voluntary reaction | the brain gives you choices and you decide how to react |
| nucleus | control center of the neuron |
| central nervous system | division of the nervous system that includes the brain and spinal cord |
| long-term memory | memories that become a permanent part of the knowledge file |
| sensory neuron | carry messages to the brain and spinal cord |
| reflex | automatic reaction to some sense message |
| dendrites | part of the neuron that takes in messages |
| peripheral nervous system | division of the nervous system that includes the nerves |
| short-term memory | memories that last just minutes |
| neurons | nerve cells |
| spinal cord | carries messages from the body to the brain and from the brain to the body |
| spinal reflex | spina cord reacts fast, making the decision, then sends the message to the brain telling it what it did |
| brain stem | part of the brain that controls basic body functions, such as breathing, that keep the body alive |
| cerebullum | part of the brain that is in charge of balance, and keeping the muscles working together |
| cerebrum | part of the brain responsible for most thinking activities, emotions, and memories |
| cell | organism's basic structure of life |
| vacuole | storage center of a cell |
| mitochondrion | cell's energy processor |
