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Questions and Answers
What structures protect the lungs within the thoracic cavity?
What structures protect the lungs within the thoracic cavity?
Sternum, ribs, and vertebral column
Where does the exchange of carbon dioxide and oxygen occur in the body?
Where does the exchange of carbon dioxide and oxygen occur in the body?
Lungs and all body tissues
Define diffusion.
Define diffusion.
Movement of substances from an area of high concentration to an area of low concentration through a semi-permeable membrane
What triggers the need to breathe?
What triggers the need to breathe?
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What is the role of the diaphragm in breathing?
What is the role of the diaphragm in breathing?
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