You sick?
Teeny Tiny
Harmful/Helpful Chemicals
It's all in your head!
It's Important
100
a disease that can not be passed from one person to another
What is a noncommunicable disease?
100
a disease-causing micro-organism such as certain bacteria and viruses
What is a pathogen?
100
any chemical that affects the central nervous system, causing a physical or emotional change in a person
What is a drug?
100
a nerve cell that relays information between the brain and other part of the body
What is neuron?
100
the body system that fights pathogens
What is the immune system?
200
a disease that can pass from one person to another through pathogens
What is a communicable disease?
200
a tiny particle that can reproduce only inside the cells of living organisms
What is a virus?
200
a stimulant drug present in tea, coffee, and soda pop that speeds up the central nervous system
What is caffeine?
200
the branchlike structure of a neuron that sends messages to other neurons
What is an axon?
200
a communicable disease that spreads out of control
What is an epidemic?
300
a condition that exists when pathogens enter the body and the body reacts to them
What is an infection?
300
one-celled organism without a nucleus
What is bacteria?
300
a drug that kills or slows the growth of bacteria
What is an antibiotic?
300
a bruise
What is a contusion?
300
an automatic response to a movement, noise, or some other stimulus
What is a reflex?
400
a disease that is caused by genes
What is a hereditary disease?
400
a protein made by white blood cells to fight a specific pathogen
What is an antibody?
400
a chemical stimulant in tobacco that raises a person's heart rate and blood pressure
What is nicotine?
400
a hard blow to the head that may cause temporary loss of consciousness
What is a concussion?
400
the body's process of taking in and using food
What is nutrition?
500
a disorder that prevents the body's immune system from defending itself against pathogens
What is AIDS?
500
a chemical released by the brain to reduce pain
What is an endorphin?
500
a medicine made of dead or weak pathogens that help the body build defenses against the disease that the pathogens cause
What is a vaccine?
500
the three major parts of the brain
What is brain stem, cerebrum, and cerebellum?
500
three major non-communicable diseases that are among the top causes of death in North America
What is cancer, diabetes, and heart disease?
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