Where does oxygen enter the body?

• Mouth

• Nose

• Ears

• Eyes

What is the passageway inside the nose called?

• Trachea

• Bronchi

• Nasal cavity

• Larynx

What connects the nasal cavity to the larynx?

• Pharynx

• Trachea

• Bronchioles

• Alveoli

What is the voice box also known as?

• Trachea

• Larynx

• Bronchi

• Alveoli

What is the windpipe called?

• Bronchi

• Trachea

• Larynx

• Pharynx

What branches off the trachea into each lung?

• Alveoli

• Bronchi

• Bronchioles

• Capillaries

What are the smaller airways within the lungs called?

• Alveoli

• Bronchioles

• Trachea

• Larynx

Where does gas exchange occur in the lungs?

• Bronchi

• Alveoli

• Trachea

• Larynx

What are the tiny blood vessels surrounding alveoli called?

• Arteries

• Veins

• Capillaries

• Bronchioles

What carries oxygen in the blood?

• White blood cells

• Platelets

• Red blood cells

• Plasma