Respiratory System Anatomy

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Which component of the respiratory system is responsible for the spongy structure of the lungs?

Alveolar ducts

Capillaries

Respiratory bronchioles

Alveolar sacs (correct)

What is the function of the thin interalveolar septa between neighboring alveoli?

To facilitate exchange of oxygen and carbon dioxide

To connect alveoli with the respiratory membrane

To support the structure of the lungs

To separate air in the alveoli from capillary blood (correct)

What is the composition of the air-blood barrier or respiratory membrane?

An alveolar type II cell, a capillary endothelial cell, and their basement membranes

An alveolar sac cell, a capillary endothelial cell, and their basement membranes

An alveolar type I cell, a capillary endothelial cell, and their fused basement membranes (correct)

A respiratory bronchial cell, an alveolar duct cell, and their basement membranes

What type of blood is found in the capillaries surrounding each alveolus?

Mixed deoxygenated blood Signup and view all the answers

Which structure facilitates the exchange of oxygen and carbon dioxide in the respiratory system?

Capillaries Signup and view all the answers

Which structure in the respiratory region leads to an alveolar duct?

Respiratory bronchioles Signup and view all the answers

What is the function of type II alveolar cells?

All of the above Signup and view all the answers

What forms a continuous series of alveoli at the end of an alveolar duct?

Cluster of alveoli Signup and view all the answers

Which of the following is NOT a component of the blood-air barrier?

Basal laminae of epithelial cells Signup and view all the answers

Where are gas exchanges primarily happening?

Alveoli Signup and view all the answers

What is the surfactant material secreted by exocrine club cells and type II alveolar cells composed of?

All of the above Signup and view all the answers

What is the primary function of alveolar pores?

To equalize air pressure in neighboring alveoli Signup and view all the answers

What is the main component of pulmonary surfactant?

Lecithin and sphingomyelin Signup and view all the answers

What is the primary function of Type I alveolar cells?

To maintain the alveolar side of the blood-air barrier Signup and view all the answers

Respiratory System Anatomy

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Questions and Answers

Which component of the respiratory system is responsible for the spongy structure of the lungs?

What is the function of the thin interalveolar septa between neighboring alveoli?

What is the composition of the air-blood barrier or respiratory membrane?

What type of blood is found in the capillaries surrounding each alveolus?

Which structure facilitates the exchange of oxygen and carbon dioxide in the respiratory system?

Which structure in the respiratory region leads to an alveolar duct?

What is the function of type II alveolar cells?

What forms a continuous series of alveoli at the end of an alveolar duct?

Which of the following is NOT a component of the blood-air barrier?

Where are gas exchanges primarily happening?

What is the surfactant material secreted by exocrine club cells and type II alveolar cells composed of?

What is the primary function of alveolar pores?

What is the main component of pulmonary surfactant?

What is the primary function of Type I alveolar cells?

What is the result of lack of adequate surfactant in premature neonates?

What is the purpose of the L/S ratio test?

What is the function of Type II alveolar cells?

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