Respiratory system

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?

• Bronchi

• Trachea

• Pharynx

• Larnyx

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

• Breathing

• Coughing

• Eating

• Walking

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

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

• Systole

• Diastole

• Expiration

• Inspiration

During cellular respiration, what happens to the carbon dioxide?

• It leaves the alveoli and enters the bloodstream

• It leaves the bloodstream and enters the cells

•  It leaves the bloodstream and enters the alveoli

• It leaves the cells and enters the bloodstream

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

• 2

• 3

• 4

• 5

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

• Bone

• Cartilage

• Muscle

• Tendons