Respiratory System

Which is NOT a part of the respiratory system?

• alveoli

• lungs

• trachea

• esophagus

How does the diaphragm aide in breathing?

• When the diaphragm contracts, the lungs expand and allow oxygen to enter.

• When the diaphragm relaxes, the lungs contract and allow oxygen to enter.

• The diaphragm does not work with the respiratory system.

The respiratory system works directly with the ____ system to exchange oxygen and carbon dioxide in the lungs.

• muscular

• endocrine

• circulatory

• digestive

After air moves through the pharynx it continues downward. The _____, or windpipe, directs the air into 2 separate branches or tubes.

• mucus
• trachea
• larynx
• epiglottis

What is breathed out from our mouth and nose?

• carbon dioxide
• oxygen
• nitrogen
• helium

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

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

• air/oxygen
• oxygen/carbon dioxide 
• carbon dioxide/waste 
• waste/air 

Tags

NGSS.5-LS2-1

Within the lungs, the exchange of oxygen and carbon dioxide occurs between the ___ and the capillaries. 

• trachea 
• bronchi 
• alveoli
• diaphragm

Which part of the Respiratory System plays a major role in speech? Also known as the voice box.

• nose

• pharynx

• larynx

• trachea

The large muscle that contracts and relaxes and moves air in and out of the lungs.

• epiglottis

• alveoli

• diaphragm

• trachea