Respiratory System

What is tube that is also known as your wind pipe?

• esophogus
• bronchi
• trachea
• alveoli

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

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

Location of gas exchange

• alveoli
• myocardium
• raveoli
• pulmonary vent

Air moves into the lungs due to 

• decreased air pressure in lungs
• pressure of diaphragm on lungs
• throat muscles contracting
• active transport

What is the main bone structure that protects the lungs

• Vertebrae
• Rib cage
• Skull
• Pelvis

When air pressure inside the lungs is less than air pressure in the atmosphere...

• Air moves into the lungs
• Air moves out of the lungs

For air to flow into the lungs, the pressure inside the alveoli must become lower than the atmospheric pressure. How does this occur?

• By decreasing lung size
• By coughing
• By increasing lung size

Smaller branches of the bronchi inside the lungs.

• alveoli
• bronchioles
• larynx
• mouth

Main muscle that controls breathing by changing pressure in the chest cavity when it contracts or relaxes.

• mouth
• pharynx
• diaphragm
• alveoli

Which of the following is affected by the respiratory system?

• Yawning 
• Hiccups
• Sneezing
• All of these