Functions of the Respiratory System

One of the functions of the respiratory system related to air intake is:

• oxygenating the blood

• digesting food

• circulating blood

• producing hormones

The respiratory system exchanges gases between the lungs and the bloodstream through which process?

• Osmosis

• Diffusion

• Active transport

• Filtration

The role of the respiratory system in removing stale air is to:

• filter out impurities from the air

• exchange oxygen and carbon dioxide

• remove carbon dioxide from the body

• humidify the air

What is the function of the nasal cavity?

• Conduct air to the trachea

• Filters, warms, and humidifies inhaled air

• Allows air to travel to and from the lungs

What role does the pharynx/larynx play in the respiratory system?

• Filters, warms, and humidifies inhaled air

• Conduct air to the trachea and helps produce sound

• Allows air to travel to and from the lungs

Fill in the blank: The trachea allows air to travel to and from the _______.

• lungs

• heart

• stomach

• brain

What are the main organs of the respiratory system?

• Heart

• Lungs

• Kidneys

• Liver

Fill in the blank: The bronchi serve as passageways for air inside the lungs where fresh oxygen and harmful carbon dioxide are _______.

• exchanged

• absorbed

• released

• stored

What is the process by which air moves into and out of the lungs? Fill in the blank: Ventilation is the process by which air moves into and out of the _______.

• lungs

• heart

• stomach

• brain

What is the process of gas exchange called?

• Respiration

• Photosynthesis

• Transpiration

• Osmosis