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Pulmonary System Anatomy

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Questions and Answers

What is the primary function of the visceral pleura?

To regulate the diaphragm

To provide a surface for gas exchange

To synthesize surfactant

To sense stretch (correct)

What is the pressure in the pleural space?

+4 mmHg

-4 mmHg (correct)

0 mmHg

10 mmHg

What type of cells are responsible for synthesizing surfactant?

Type II pneumocytes (correct)

Type I pneumocytes

Macrophages

Fibroblasts

What is the result of a lack of surfactant?

Respiratory distress syndrome Signup and view all the answers

What is the main function of the thoracic cage?

To protect the lungs Signup and view all the answers

What type of ribs are connected to the sternum by costal cartilages?

True ribs Signup and view all the answers

What is the name of the reflex that prevents over-inflation of the lungs?

Hering-Breuer reflex Signup and view all the answers

What is the term for the collapse of the lung?

Atelectasis Signup and view all the answers

What is the boundary of the thoracic cage posteriorly?

Thoracic vertebrae Signup and view all the answers

What is the purpose of the pleural fluid?

To lubricate the pleura and act as a shock absorber Signup and view all the answers