Circulatory
Skeletal
Digestive
Respiratory
100

Name an organ in this system.

Heart

100
What is the skeleton made up of?
Bones
100

Name an organ in the digestive system

The stomach.

100

Which of these organs is not part of the respiratory system?

a. pharynx
b. larynx
c. stomach
d. lungs.

c. stomach

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

In your lungs, oxygen goes from the air into the blood, when you breathe in. What does the body breathe out?




Carbon dioxide
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

What happens when we exhale (breathe out)?


a. The diaphragm contracts and moves upwards
b. The diaphragm relaxes and moves upwards
c. The diaphragm relaxes and moves downwards
b. The diaphragm relaxes and moves upwards
400
What are the three kinds of tubes that blood travels through?
Arteries, Capillaries and Veins
400

How many bones do human adults have?

206

400

What happens to digested food?

Digestive food passes into the blood from the small intestine. This is called absorption.

400


What are the tiny air sacs in the lungs called?

a. Bronchioles
b. Alveoli
c. Capillaries
d. stomach


b. Alveoli

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