17 Questions
Which component of the respiratory system is responsible for the spongy structure of the lungs?
Alveolar sacs
What is the function of the thin interalveolar septa between neighboring alveoli?
To separate air in the alveoli from capillary blood
What is the composition of the air-blood barrier or respiratory membrane?
An alveolar type I cell, a capillary endothelial cell, and their fused basement membranes
What type of blood is found in the capillaries surrounding each alveolus?
Mixed deoxygenated blood
Which structure facilitates the exchange of oxygen and carbon dioxide in the respiratory system?
Capillaries
Which structure in the respiratory region leads to an alveolar duct?
Respiratory bronchioles
What is the function of type II alveolar cells?
All of the above
What forms a continuous series of alveoli at the end of an alveolar duct?
Cluster of alveoli
Which of the following is NOT a component of the blood-air barrier?
Basal laminae of epithelial cells
Where are gas exchanges primarily happening?
Alveoli
What is the surfactant material secreted by exocrine club cells and type II alveolar cells composed of?
All of the above
What is the primary function of alveolar pores?
To equalize air pressure in neighboring alveoli
What is the main component of pulmonary surfactant?
Lecithin and sphingomyelin
What is the primary function of Type I alveolar cells?
To maintain the alveolar side of the blood-air barrier
What is the result of lack of adequate surfactant in premature neonates?
Respiratory distress
What is the purpose of the L/S ratio test?
To determine fetal lung maturity
What is the function of Type II alveolar cells?
To produce pulmonary surfactant
Test your knowledge on the anatomy of the respiratory system, focusing on the structure and function of terminal bronchioles, respiratory bronchioles, alveolar ducts, and alveolar sacs.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
