Respiratory System Facts
Parts of the Respiratory System
Circulatory System Facts
Parts of the Circulatory System
Fun Facts
100

What gas do we breathe in?

Oxygen. 

100

Spongy organs that expand to fill with air

Lungs.

100

Blood cells that carry oxygen from the lungs to the body cells.

Red blood cells.

100

A hollow, muscular organ that pumps blood throughout the body.

The Heart.

100

This can cause several different lung diseases and lung cancer.

Smoking. 

200

What gas do we breathe out?

Carbon dioxide.

200

A tube in your throat that connects to the bronchi. 

Trachea. 

200

Blood cells that perform the function of destroying disease-causing microorganisms.

White blood cells. 

200

The red liquid that circulates in the arteries and veins of humans carrying oxygen to and carbon dioxide from the tissues of the body.

Blood.

200

Is any of your blood blue?

No!

300

These are the main organs in the respiratory system?

Lungs.

300

Two small tubes that connect the trachea to the lungs.

Bronchi

300

The part of your blood that clots and stops you from bleeding.

Platelets.

300

Blood vessel carrying blood away from the heart.

Arteries. 

300

The reason blood has a metallic taste is due to the presence of this.

Iron, or Hemoglobin.

400

What is the main function of the Respiratory System?

Gas exchange. 

400

Tiny branches of air tubes in the lungs that are a continuation of the bronchi.

Bronchioles.

400

What are the four main parts of the circulatory system?

1. Heart

2. Blood

3. Arteries 

4 Veins

400

Blood vessels that carry blood back to the heart.

Veins.

400

When people have this, it causes their bronchi to become swollen, which makes their airways smaller. 

Asthma or an asthma attack.

500

Which part of the respiratory system is the site of gas exchange?

Alevoli. 

500

Tiny sacs that are at the end of the bronchioles

Alveoli.

500

What are the four main components of your blood?

1. Red blood cells

2. White blood cells

3. Platelets

4. Plasma

500

Microscopic vessels through which exchanges take place between the blood and cells of the body.

Capillaries. 

500

The number of times the average heart will beat each day.

115,000

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