Quiz on Bronchioles and Alveoli

What type of epithelium lines larger bronchioles?

• Simple cuboidal epithelium

• Simple columnar ciliated epithelium

• Stratified squamous epithelium

• Simple squamous epithelium

What type of cells are found in terminal bronchioles?

• Goblet cells

• Clara cells

• Type I alveolar cells

• Ciliated cells

What is the primary function of Clara cells?

• Secrete surfactant

• Produce mucus

• Facilitate gas exchange

• Provide a non-sticky surface

What structure separates alveoli from one another?

• Pleura

• Interalveolar septum

• Bronchioles

• Alveolar ducts

What percentage of the alveolar surface is covered by Type I cells?

• 75%

• 25%

• 97%

• 50%

What is the primary function of Type II alveolar cells?

• Provide structural support

• Facilitate gas diffusion

• Secrete surfactant

• Secrete mucus

What type of epithelium lines smaller (terminal) bronchioles?

• Simple columnar ciliated epithelium

• Simple cuboidal ciliated epithelium

• Simple squamous epithelium

• Stratified cuboidal epithelium

What is the structure of Type II alveolar cells?

• Columnar with cilia

• Large, round or cuboidal

• Non-ciliated with a flat apex

• Flattened cells

What do Type I cells help form?

• Ciliated surface

• Blood-air barrier

• Mucus layer

• Surfactant layer

What is the role of the interalveolar septum?

• Facilitate airflow

• Produce surfactant

• Separate alveoli

• Support bronchioles