Question

Which of the following statments best descibes how oxyegen entersn the lungs (1 point)

Answer 1

Which of the following statements best describes how oxygen enters the lungs?%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0AOxygen enters the lungs through the trachea, which branches into two tubes called the bronchi, which lead to the lungs.%0D%0AOxygen enters the lungs through the trachea, which branches into two tubes called the bronchi, which lead to the lungs.%0D%0A%0D%0AOxygen enters the lungs through the diaphragm, which branches into two tubes called the trachea.%0D%0AOxygen enters the lungs through the diaphragm, which branches into two tubes called the trachea.%0D%0A%0D%0AOxygen enters the lungs through bronchi, which branches into two tubes called the bronchioles.%0D%0AOxygen enters the lungs through bronchi, which branches into two tubes called the bronchioles.%0D%0A%0D%0AOxygen enters the lungs through the trachea, which branches into the alveoli.

Answer 2

External respiration takes place in the ____________________.%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0Abronchi%0D%0Abronchi%0D%0A%0D%0Atrachea%0D%0Atrachea%0D%0A%0D%0Aalveoli%0D%0Aalveoli%0D%0A%0D%0Adiaphragm

Answer 3

Oxygen enters the lungs through inhalation.

Answer 4

Oxygen enters the lungs through the trachea, which branches into two tubes called the bronchi. These bronchi further branch into smaller tubes called bronchioles that lead to the alveoli.

Answer 5

External respiration takes place in the alveoli.