Which of the following statements best describes how oxygen enters the lungs?
(1 point)
O Oxygen enters the lungs through the trachea, which branches into two tubes called the bronchi, which lead to the lungs.
• Oxygen enters the lungs through the diaphragm, which branches into two tubes called the trachea.
• Oxygen enters the lungs through bronchi, which branches into two tubes called the bronchioles.
• Oxygen enters the lungs through the trachea, which branches into the alveoli.
1 answer
Oxygen enters the lungs through the trachea, which branches into two tubes called the bronchi, which lead to the lungs.