The air sacs that are covered with capillaries where gas exchange takes place

• bronchi
• lungs
• oxygen
• alveoli

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body
• to bring oxygen to the body
• to break down food and absorb nutrients
• to remove oxygen from the body and deliver carbon dioxide

Given the following structures:

1. Bronchiole

2. Trachea

3. Brochi

4. Alveoli

Which of the following is the correct order that air would flow during inhalation.

• 1,2,3,4

• 2,3,1,4

• 2,1,3,4

• 4,2,3,1

What is the correct term for the drawing in of breath; inhalation?

• Inspiration

• Expiration

• Aspiration

• Explanation

Where does Gas exchange happen?

• Alveoli

• Nose

• Lung

• Bronchi

What is function of the dome-shaped diaphragm muscle?

• This is where gas exchange happens.

• Air passes through the diaphragm on the way to the lungs.

• It attaches to the lungs and contracts and relaxes to help breathing.

When the diapragm relaxes and moves back up, the lungs are...

• expanding with air
• shrinking - pushing air out

Label A is...

• Trachea
• Diagphragm
• Bronchus
• Alveolus

Label C is...

• Trachea

• Diaphragm

• Bronchi

• Alveoli

Label D is...

• Trachea

• Diaphragm

• Bronchi

• Alveoli