Show:
General Questions
Digestive System
Respiratory System
Nervous System
Circulatory System
100

This is the smallest unit of life and makes up the human body 

What is a cell?

100

Where does the digestion of food begin?

What is the mouth?

100
These balloon like sacs that inflate and deflate, bringing air into and out of the body.
What are the lungs?
100
Tiny cells which send signals to the brain. They are also known as nerve cells.
What are neurons?
100

These disc shaped cells transport oxygen from the lungs to the other parts of the body.

What are red blood cells?

200

Which organ system is responsible for producing offspring (babies)? 

What is the reproductive system?

200

Food travels down this long tube from the mouth to the stomach.

What is the esophagus?

200

The oxygen we breathe in enters the mitochondria to produce which substance in cellular respiration? 

What is ATP/energy?

200
The central nervous system is composed of the brain as well as this long structure that extends down the back and is the connector between the brain and all other parts of the body.
What is the spinal cord?
200

These blood cells are a vital part of the body's immune system.

What are white blood cells?

300

This endocrine gland produces insulin to regulate blood sugar

What is the pancreas?

300

The part of the digestive system where nutrients are absorbed into the bloodstream

What is the small intestine?

300
This chemical is in the air we breathe and we need it to survive.
What is oxygen?
300

The peripheral nervous system is made up of these types of cells

What are nerves?

300

How many chambers does the human heart have? 

What is four?

400

This organ system protects our body from invading pathogens (bacteria and viruses)

What is the immune system?

400

This chemical aids in digestion by speeding up chemical reactions.

What is an enzyme?

400
This chemical is exhaled by animals, but plants "breathe" it in and use it to produce oxygen.
What is carbon dioxide?
400

The largest part of the brain- responsible for thinking, memory and personality.

What is the cerebrum?

400

Cell in the circulatory system that helps our blood to clot

What are platelets?

500

The function of this organ system is to detect and respond to changes in the environment (maintaining homeostasis)

What is the nervous system?

500

The muscular contractions that push food through our digestive tract

What is peristalsis?

500
Where does oxygen go after it is breathed in through the lungs?

It enters the bloodstream and is carried by red blood cells around the body

500
The part of the nervous system that quickly interprets messages and decides what response is appropriate

What is the brain?

500
The largest blood vessels in the body, carry blood away from the heart

What are arteries?