| A | B |
|---|
| brain stem | the part of the brain that regulates breathing, heart rate, blood pressure, consciousness, hunger, thirst, and emotions |
| spinal cord | a long rod of nerve tissue and spine |
| reflex | an automatic response ot a movement, noise, or some other stimulus |
| concussion | a hard blow to the head that may cause temporary loss of consciousness |
| contusion | a bruise |
| coma | don't have definition |
| paralysis | the inability to move body parts because of the nerve damage |
| quadriplegia | paralysis from the neck down |
| paraplegia | a paralysis of the lower body |
| drug | any chemical that affects the central nervous system, causing a physical or emotional charge in a person |
| prescription drug | a drug that can't be purchased without a doctor's prescription |
| over-the-counter drug | a drug that can be bought without a doctor's prescription |
| addiction | the physical dependence of a person's body on a drug |
| illegal drug | a drug that is against the law to buy or possess or to sell |
| hallucinate | to hear or see things that are not real |
| alcohol | a depressant drug that slows down the central nervous system |
| nicotine | a chemical simulant in tobacco that raises a persons heart rate and blood pressure |
| caffeine | a simulant drug present in coffee, tea, and soda pop that speeds up the central nervous system |
