Compared to the primary bronchi, the secondary and tertiary bronchi have
A)more cartilage.
B)less cartilage.
C)more smooth muscle.
D)less smooth muscle.
E)both less cartilage and more smooth muscle.

Question

Quizplus · Accepted Answer

The secondary and tertiary bronchi have less cartilage and more smooth muscle compared to the primary bronchi, allowing for more flexibility and control over airflow.

Compared to the Primary Bronchi, the Secondary and Tertiary Bronchi