Circulatory
Skeletal
Digestive
Respiratory
Random
100
Name an organ in this system.
Heart
100
What is the skeleton made up of?
Bones
100
Which organ crushes (churns) and breaks up food?
The stomach.
100
Which organ contains many tiny air spaces called air sacs? hint: it is located in your chest, and the rib cage protects them.
Lungs.
100

Name three of the five senses.

Sight, taste, touch, smell, sound.

200
Arteries that split into smaller tubes are called?
Capillaries
200
What does your skull protect?
The Brain
200
Why do cells need food?
Your food gives cells energy they need to live and grow.
200
Name the harmful habit that damages the lungs, and fills them with tar.
Smoking.
200

What is the method of transport that the respiratory, circulatory, and digestive system all use to move oxygen, carbon dioxide, and nutrients across membranes?

Diffusion

300
What is the function of the heart in the Circulatory system?
Pumps blood throughout the body.
300
What does your rib cage protect?
The lungs and the heart.
300
What is the longest organ in this system? (Hint: it passes food into the blood)
The small intestine
300
In your lungs, oxygen goes from the air into the blood, when you breathe in. What does the body breathe out?
Carbon dioxide.
300

Do arteries pump blood from the heart into the body? Or from the body into the heart?

Arteries pump blood from the heart into the body.

400
What are the three kinds of tubes that blood travels through?
Arteries, Capillaries and Veins
400
Do bones give muscles something to pull on?
Yes
400
What happens to digested food?
Digestive food passes into the blood from the small intestine. This is called absorption.
400
How does asthma effect breathing?
It causes breathing to be difficult.
400

If an artery is close to your skin, you can feel it stretching when blood is pumped into them. You can feel this thumping in your wrist and neck. What is it called?

The pulse.

500
Name one purpose that the circulatory system has.
Carries oxygen to the body, and removes carbon dioxide from the body. Carries nutrients to the various parts of the body. Helps in the removal of waste products from the body. Regulates the temperature within the body. Helps protect the body against various diseases and infections. Helps in the blood clotting process, in order to prevent excessive bleeding in the event of an injury.
500
Will a broken bone heal if it is bent?
No
500
What are the two ways the stomach, breaks down food.
1. Crushing the food physically, with muscles, by churning and contracting. 2. Adding digestive juices to the food.
500
What connects your throat to your lungs?
Windpipe.
500

How many chambers does the human heart have compared to the frog?

The frog: 3 chambers Humans: 4 chambers

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