respiration and gas exchange: review

Inside the lungs, the bronchi divide into smaller tubes. At the end of these tubes, there are tiny sacs called...

• lungs

• trachea

• alveoli

• capillaries

When we breathe out the diaphragm...

• contracts

• relaxes

The trachea is a tube that divides into two smaller tubes called (a)  

Where do we have our vocal cords?

• In the larynx

• In the trachea

• In the pharynx

• In the mouth

Little bags where the change between oxygen and carbon dioxide happens

• alveolus

• lungs

• bronchioles

• trachea

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

• air/oxygen

• oxygen/carbon dioxide

• carbon dioxide/waste

• carbon dioxide/ oxygen

The "windpipe" is also called the (a)  

aerobic respiration uses glucose and (a)   to make energy.

When we inhale, the rib cage _________________.

• moves up and out

• moves downwards

• the rib cage cannot move

The (a)   cells make a liquid containing water and mucus which evaporates into the air in the nose and moistens it