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Study
Respiratory System
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Air travels down the ____ to the lungs
windpipe
Oops!
Okay!
What is exhalation?
we breathe out (lungs get smaller)
Oops!
Okay!
Does our body need carbon dioxide?
no
Oops!
Okay!
What is inhalation?
breathe in air (lungs get bigger)
Oops!
Okay!
Gas exchange happens in the _____
alveoli
Oops!
Okay!
What are alveoli?
millions of small air sacs where gas exchange occurs
Oops!
Okay!
During exhalation, we breathe out ________.
carbon dioxide
Oops!
Okay!
Blood carries oxygen to our ____
organs
Oops!
Okay!
What is this?
lungs
Oops!
Okay!
What are the two important processes of respiration?
1) the process of Inhaling and exhaling air 2) the process of exchanging two gases (oxygen and carbon dioxide)
Oops!
Okay!
What is not used in respiration? A) Lungs B) Esophagus C) Pharynx
B) Esophagus
Oops!
Okay!
During inhalation, we breathe in ______.
oxygen.
Oops!
Okay!
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