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The main ORGAN responsible for breathing is:

• the Brain

• the Lungs

• the Liver

• the Kidneys

What are the tiny air-sacs where gas exchange takes place?

• Lungs

• Alveoli

• Bronchus

• Broncioli

What is the muscle under the lungs called?

• Intercostal

• Diaphragm

• Bronchus

• Cardiac

When you breathe the diaphragm _______    ____ creating more space for more air.

• raises high
• raises low
• lifts high
• flattens out

Where the exchange of gases actually occur?

• Bronchi

• Trachea

• Oxygen

• Alveoli

Which of the following show the air passage for inhalation?

• lungs --> nose --> trachea

• nose --> trachea --> lungs

• nose --> lungs --> trachea

• trachea --> lungs --> nose

The trachea leads to the...

• Bronchioles
• Bronchi
• Esophagus
• Pulmonary Vessel

Identify the nasal cavity.

• C
• A

• E
• F

Identify the diaphragm.

• C
• D
• E
• F

Identify part B

• Trachea

• Bronchus

• Bronchiole

• Alveoli