Respiration ensures that ________ enters the body and that ________ exits the body.

• oxygen; water

• oxygen; carbon dioxide

• carbon dioxide; oxygen

• carbon dioxide; water

The ________ is the entrance of the respiratory tract.

• nose

• oral cavity

• pharynx

• trachea

To increase CO2 levels in the blood, a person should

• take deeper and longer breaths.

• hold their breath.

• breathe faster than normal.

All of the following are functions of respiratory system EXCEPT:

• Respiration

• Regulation of blood pH

• Olfaction

• None of the above

All of the following are parts of upper respiratory tract except:

• Lungs

• Nose

• Nasal Cavity

• Pharynx

Which of the following is not part of the lower respiratory tract?

• Nasal cavity

• Trachea

• Bronchi

• Lungs

The primary organ of respiration

• Trachea

• Bronchi

• Larynx

• Lungs

A process of moving air in and out of the lungs

• Ventilation

• Forceful expiration

• Inspiration

• None of the above

All of the following are TRUE about surfactant except

• A mixture of lipoprotein

• Increases surface tension

• Keeps lungs from collapsing

• A single fluid layer on the surface of thin fluid lining alveoli

All of the following are functions of the nose EXCEPT

• Filters

• Warms air

• Airway for respiration

• None of the above