Respiratory System

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

What are the main organs of gas exchange in the respiratory system?

• diapragm
• lungs
• trachea
• bronchi

Letter B is pointing to which organ of the Respiratory System?

• Nose
• Trachea
• Lungs
• Diaphragm

Given the following structures:
1. larynx
2. nasal cavity
3. pharynx
4. trachea
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 

Name the structure labeled 8 

• lungs 
• trachea 
• diaphragm 
• alveoli 

The passageway that is shared by both the digestive and respiratory system is the....

• larynx
• pharynx
• trachea
• nose

Flap of skin that covers the opening to the windpipe during swallowing

• Stomach
• Trachea
• Pancreas
• Epiglottis

Given the following structures:
1. alveoli
2. bronchi
3. bronchioles
Which of the following is the correct order in which air would flow after inhalation? 

• 1,2,3
• 2,1,3
• 2,3,1
• 3,2,1

Surfactant...

• decreases the surface tension of fluid in the alveoli
• increases the energy required to keep the lungs inflated
• makes the lungs tend to collapse
• traps foreign particles that enter the lungs

The movement of oxygen from the alveoli to the blood and from the blood to the tissues is due to the process of... 

• osmosis
• diffusion
• cytokinesis
• phagocytosis