Respiratory

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

• Filtration
• Respiration
• Sound production
• Temperature control

What structure is a passageway for both food and air?

• Bronchus
• Larynx
• Pharynx
• Trachea

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

• Breathing
• Coughing
• Eating
• Walking

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

• bone
• cartilage
• muscle
• tendons

What structure connects the larynx to the bronchi?

• Bronchioles
• Oropharynx
• Pleura
• Trachea

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

• Alveoli
• Bronchi
• Larynx
• Trachea

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

• Two
• Three
• Four
• Five

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

• External respiration
• Internal respiration
• Expiration
• Inspiration

During cellular respiration, what happens to the carbon dioxide?

• It leaves the alveoli and enters the bloodstream
• It leaves the alveoli and is exhaled from the lungs
• It leaves the bloodstream and enters the alveoli
• It leaves the cells, enters the bloodstream, and exhaled by the lungs

Barbara has asthma and uses an inhaler when she starts to wheeze. The purpose of the device is to:

• contract blood vessels
• dissolve mucus
• enlarge the bronchioles
• liquefy secretions in the lungs