| A | B |
|---|
| Endocrine System | System that produces chemical messengers called hormones. |
| Hormone | Chemical messenger that travels through the blood |
| Gland | An organ that produces and releases a hormone |
| Hypothalamus | The link between the nervous system and the endocrine |
| Pituitary | Communicates with the hypothalamus to control many of the body's activities |
| Negative Feedback System | A system that turns off the condition it produces |
| Immune System | The body's system of defense against pathogens |
| Disease | Any condition that disrupts the normal functioning of the body |
| Pathogen | Disease-causing agents |
| Infectious Disease | Disease that is transmitted among people by harmful organisms/communicable disease |
| Noninfectious Disease | Disease not caused by disease-causing microorganisms |
| Barriers | The body's first line of defense against pathogens; skin, breathing passages, mouth and stomach |
| Inflammation | Redness, heat, swelling and pain at the site of an injury or infection |
| Immunity | A memory for a specific pathogen that allows your body to kill it without getting sick from it. |
| Allergy | Reaction that occurs in the body due to an oversensitivity to a substance; food, medicine or chemical |
| Autoimmune Disorders | When the immune system attacks the cells of its own body |
