Which are the Thinnest and Most Delicate Branches of the Bronchial

Question

Which are the thinnest and most delicate branches of the bronchial tree?
A) segmental bronchi
B) lobar bronchi
C) terminal bronchioles
D) main bronchi
E) respiratory bronchioles

Accepted Answer

Respiratory bronchioles are the thinnest and most delicate branches of the bronchial tree, marking the transition from the conducting zone to the respiratory zone where gas exchange begins.