Anatomy Exam Respiratory System Anatomy 2

Question 1

The right primary bronchus differs from the left primarily in that it is:

Accepted Answer

Wider and more vertical

Answer

The right primary bronchus is wider, shorter, and more vertical than the left, which is why aspirated foreign bodies more commonly lodge in the right lung.

Question 2

Alveolar type II pneumocytes primarily function to:

Accepted Answer

Produce pulmonary surfactant

Answer

Type II pneumocytes produce pulmonary surfactant, which reduces alveolar surface tension and prevents alveolar collapse (atelectasis) during expiration.

Question 3

The pleural cavity is located between which two layers?

Accepted Answer

The visceral and parietal pleurae

Answer

The pleural cavity is the potential space between the visceral pleura covering the lung and the parietal pleura lining the thoracic wall, containing a thin film of lubricating fluid.

Question 4

Which of the following correctly sequences the path of inhaled air from the nose to the alveoli?

Accepted Answer

Nasal cavity → pharynx → larynx → trachea → bronchi → alveoli

Answer

Air flows: nasal cavity → pharynx → larynx → trachea → primary bronchi → secondary bronchi → bronchioles → alveoli.

Question 5

The conducting zone of the respiratory system ends at which structure?

Accepted Answer

Terminal bronchioles

Answer

The conducting zone conducts air but does not participate in gas exchange; it ends at the terminal bronchioles, beyond which begins the respiratory zone.

Anatomy Exam Practice Test

Anatomy Exam Practice Test

Anatomy Exam Respiratory System Anatomy 2