QQuestionAnatomy and Physiology
QuestionAnatomy and Physiology
Which of the following is the correct order of branches of the bronchial tree from largest to smallest?
A. Trachea, lobar bronchus, segmental bronchus, bronchiole
B. Bronchiole, trachea, lobar bronchus, segmental bronchus
C. Trachea, bronchiole, segmental bronchus, lobar bronchus
D. None of the above
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Answer
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Step 1: Identify the order of the branches of the bronchial tree from largest to smallest.
The bronchial tree starts with the trachea, which divides into two main bronchi (also known as lobar bronchi). These main bronchi further divide into segmental bronchi, and then into bronchioles. Hence, the correct order is: Trachea, lobar bronchus, segmental bronchus, bronchiole
Step 2: Compare the options with the identified order.
A. Trachea, lobar bronchus, segmental bronchus, bronchiole This option matches the identified order, so it is a possible correct answer. B. Bronchiole, trachea, lobar bronchus, segmental bronchus This option does not match the identified order, as it starts with the smallest branch (bronchiole) and ends with the largest (trachea). C. Trachea, bronchiole, segmental bronchus, lobar bronchus This option does not match the identified order, as it lists bronchiole out of place. D. None of the above Since option A matches the identified order, this option is not correct.
Final Answer
The correct order of branches of the bronchial tree from largest to smallest is: Trachea, lobar bronchus, segmental bronchus, bronchiole. Therefore, option A is the correct answer.
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