This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic histology, Subject name: Anatomy
Lining Epithelium of respiratory bronchiole is 
Select and explain. 
A. Pseudo Stratified Columnar with Goblet Cells, B. Pseudo Stratified Columnar, C. Columnar, D. Cuboidal
D: Cuboidal
Answer: D: Cuboidal 
Explanation: The Bronchioles are subdivided into terminal bronchioles which fuher divides to form respiratory bronchioles. Respiratory bronchiole is the smallest bronchiole & it is lined with Simple Cuboidal Cells.