Meaning: A coral reef off the southern coast of Florida. Classified under: Nouns denoting natural objects (not man-made) Synonyms: cay; Florida key; key. Hypernyms (cay is a kind of...): coral reef (a reef consisting of coral consolidated into limestone) Holonyms (cay is a part of...):
Causes. Fever occurs when an area in your brain called the hypothalamus (hi-poe-THAL-uh-muhs) â also known as your body's thermostat â shifts the set point of your normal body temperature upward.
What the immune system does. The immune system protects the body against illness and infection caused by bacteria, viruses, fungi or parasites. It is really a collection of reactions and responses that the body makes to damaged cells or infection. So it is sometimes called the immune response.hat the immune system does. The immune system protects the body against illness and infection caused by bacteria, viruses, fungi or parasites. It is really a collection of reactions and responses that the body makes to damaged cells or infection. So it is sometimes called the immune response.