https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology/lung-introduction/v/the-bronchial-tree 2020-09-09T11:23:47Z The bronchial tree Follow the path of an oxygen molecule as it makes its way from your mouth down to an alveolus! Rishi is a pediatric infectious disease physician and works at Khan Academy. Rishi Desai video https://cdn.kastatic.org/googleusercontent/k_WYlERSD5SzPeI18LZ5g0SbnRTIIyRz_5vIWBPzX4S_bEzG6PqfR0r2MLy8LVO56dUISIsYk4bN05VdmwoqbTk The bronchial tree Follow the path of an oxygen molecule as it makes its way from your mouth down to an alveolus! Rishi is a pediatric infectious disease physician and works at Khan Academy. https://cdn.kastatic.org/ka-youtube-converted/Z-yv3Yq4Aw4.mp4/Z-yv3Yq4Aw4.mp4 767 Structure and Function of the gas exchange system https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology/lung-introduction/v/meet-the-lungs 2024-04-04T15:34:20.714536152Z Meet the lungs! Breathing in through the mouth or nose, air travels down the throat, through the Adam's apple or voice box, and into the lungs. The lungs, which look like an upside-down tree, direct air to tiny sacs called alveoli. Oxygen from the air enters the bloodstream, while waste carbon dioxide exits into the alveoli and is exhaled. This process is vital for human survival. Rishi Desai video https://cdn.kastatic.org/googleusercontent/uH7kTzlYMjpw2kX36_nrlBZ_1Q4BmB8OwW_tVhTLOdAD8DsUUgNrol2mUSTQgJpc4c3xwRT1iOcP2YQpTDjw5zqn Meet the lungs! Breathing in through the mouth or nose, air travels down the throat, through the Adam's apple or voice box, and into the lungs. The lungs, which look like an upside-down tree, direct air to tiny sacs called alveoli. Oxygen from the air enters the bloodstream, while waste carbon dioxide exits into the alveoli and is exhaled. This process is vital for human survival. https://cdn.kastatic.org/ka-youtube-converted/qGiPZf7njqY.mp4/qGiPZf7njqY.mp4 576 Structure and Function of the gas exchange system