1.

What is the correct sequence for the air to exhaled out from the lungs? R - Bronchus S - Trachea T - Alveolus U - Bronchiole

A. \[\text{S}\to \text{U}\to \text{R}\to \text{T}\]
B. \[\text{S}\to \text{R}\to \text{U}\to \text{T}\]
C. \[\text{T}\to \text{U}\to \text{R}\to \text{S}\]
D. \[\text{T}\to \text{R}\to \text{U}\to \text{S}\]
Answer» D. \[\text{T}\to \text{R}\to \text{U}\to \text{S}\]


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