What is the primary function of mucus and cilia in the nostrils?

• Sound production
• Filtration
• Temperature Control
• Respiration

Where are the sinuses located?

• In the front lobe of the brain
• In the skull surrounding the nasal cavity
• Inside the nares
• Under the cheek bones

What structure is a passageway for both food and air?

• Pharynx
• Bronchus
• Trachea
• Larynx

If your epiglottis were to suddenly stop working, what activity could be life threatening?

• Breathin
• Walking
• Coughing
• Eating

The nostrils, larynx, and trachea are all made primarily of:

• Cartilage
• Bone
• Muscle
• Tendons

What structure connects the larynx to the bronchi?

• Pleura
• Oropharynx
• Trachea
• Bronchioles

Where in the respiratory tract does the exchange of oxygen and carbon dioxide take place?

• Larynx
• Bronchi
• Trachea
• Alveoli

Your lungs are divided into lobes. How many lobes do you have?

• Two
• Three
• Four 
• Five

What does the pleura allow the lungs to do?

• Expand during breathing
• Trap dust and other particles
• Keep the alevoli distended
• Cough

In the process of breathing, during what stage does the movement of the diaphragm enlarge the thoracic cavity?

• Internal respiration
• External respiration
• Inspiration
• Experation