Understanding the Respiratory System

When you breathe, your lungs take in ___ and remove ___. 

• air/oxygen

• oxygen/carbon dioxide 

• carbon dioxide/waste 

• waste/air 

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body

• to bring oxygen to the body

• to break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body

• o break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

What is the function of the bronchi?

• Transport air from nose to lungs

• Transport air from trachea to lungs

• Transport air from lungs to alveoli

• Transport air from alveoli to blood

The two main branches from the trachea are called the __________________.

• bronchi

• alveoli

• capillaries

• bronchioles

What is the primary function of the alveoli in the lungs?

• To filter dust and particles from the air

• To exchange gases between the air and blood

• To produce mucus

• To humidify the air

Which of the following structures is NOT part of the respiratory system?

• Trachea

• Bronchi

• Esophagus

• Alveoli

What is the main muscle involved in the process of inhalation?

• Diaphragm

• Biceps

• Quadriceps

• Trapezius

Which gas is primarily taken in by the lungs during inhalation?

• Carbon dioxide

• Nitrogen

• Oxygen

• Helium

What is the role of the cilia in the respiratory system?

• To produce sound

• To trap and move particles out of the airways

• To exchange gases

• To absorb nutrients