How do we breathe? 787 viewsJanuary 3, 2024 Question90.64K February 13, 2020 0 Comments I know that the diaphragm expands causing the air to leave the lungs. But what happens when the diaphragm contracts? How does this draw air in to the lungs? In: Biology 5 Answers ActiveNewestOldest Anonymous Posted February 13, 2020 0 Comments When the diaphragm contracts, it creates a negative pressure difference. Physics wanting things to balance out, fills the vacuum created with air. You are viewing 1 out of 5 answers, click here to view all answers. Register or Login
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