Respiratory
Immune
Renal/Urinary
Integumentary
Senses
100

These are the two main organs used for breathing.

What are the lungs?

100

These specialized blood cells are the "soldiers" of your body that fight off germs.

What are white blood cells?

100

These two bean-shaped organs filter waste and extra water out of your blood.

What are the kidneys?

100

This is the largest organ in the human body.

What is the skin?

100

These are the six main senses humans use to learn about the world around them.

What are sight, hearing, smell, taste, touch, and balance?

200

This is the large, flat muscle below your lungs that helps you breathe in and out.

What is the diaphragm?

200

These are tiny, harmful invaders like bacteria and viruses that can make you sick.

What are pathogens/germs?

200

This stretchy, sac-like organ stores urine until you are ready to go to the bathroom.

What is the bladder?

200

This is the thin, outer layer of your skin that you can see.

What is the epidermis?

200

These tiny bumps on your tongue contain the nerves that tell your brain if food is sweet, sour, salty, or bitter.

What are taste buds?

300

This is the common name for the trachea, the tube that air travels through to reach your lungs.

What is the windpipe?

300

These proteins are made by your body to lock onto and destroy specific germs.

What are antibodies?

300

This is the name of the tube that carries urine from the bladder out of the body when you use the bathroom.

What is the urethra?

300

These tiny holes in your skin allow sweat and oils to come out.

What are pores?

300

This is the colored part of your eye that controls how much light enters through the pupil.

What is the iris?

400

These are the tiny air sacs in the lungs where oxygen enters the blood and carbon dioxide leaves it.

What are alveoli?

400

This is a medicine you can take that kills bacterial infections.

What is an antibiotic?

400

This is the name of the liquid waste that your body gets rid of through this system.

What is urine?

400

This is the dark pigment in your skin that helps protect you from the sun's rays.

What is melanin?

400

Deep inside your ear, these tiny bones (the smallest in your body) vibrate to help you hear.

What are the hammer, anvil, and stirrup (or ossicles)?

500

This is the name of the "voice box" located at the top of your trachea that contains your vocal cords.

What is the larynx?

500

This is one way your body responds to an infection, by heating itself up in order to kill off the invaders.

What is a fever?

500

The kidneys help the body balance these two elements in your blood.

What are water and salt?

500

This is the thick, inner layer of skin located directly beneath the epidermis that contains nerves and blood vessels.

What is the dermis?

500

This is the sense that is most strongly connected to your memories.

What is the sense of smell?

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