Function
What is the main function of the respiratory system?
Bring in oxygen and remove carbon dioxide
What organ is the main muscle that helps you breathe?
Diaphragm
What happens to the diaphragm when you inhale?
Moves down (contracts)
What sugar from food combines with oxygen to make energy?
Glucose
True or False: The diaphragm relaxes when you inhale.
False
What does the respiratory system remove as waste?
Carbon dioxide
Where does gas exchange take place in the lungs?
Alveoli
What happens to your lungs when you inhale?
Expand (fill with air)
What is the name of the energy your body makes from oxygen and glucose?
ATP (Adenosine Triphosphate)
True or False: Oxygen is used by cells to create energy.
True
What other body system works closely with the respiratory system to deliver oxygen and glucose?
Circulatory system
What organ filters, warms, and moistens air?
Nose or nasal cavity
What gas do you breathe in that your body needs?
Oxygen
What is the scientific name for the energy-making process inside cells?
Cellular respiration?
True or False: The circulatory system brings air into the lungs.
False
What system brings food, not air, to the body?
Digestive system
What are the two tubes that carry air into each lung?
Bronchi
What happens to carbon dioxide in the lungs?
Leaves the blood and is exhaled
What organ system helps move glucose and oxygen to every cell?
Circulatory system
True or False: Breathing and cellular respiration are the same.
False
What system controls the body with electrical signals but doesn’t deliver oxygen?
Nervous system
What part of the body protects the lungs and heart?
Ribcage
What’s the name of the tube that air travels down to reach the lungs?
Trachea
What do cells use energy (ATP) for?
To grow, move, and function properly
True or False: The respiratory system helps us talk.
True