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

Narrower and more horizontal

Answer

Longer and more oblique

Answer

Shorter and more horizontal

Question 2

Alveolar type II pneumocytes primarily function to:

Accepted Answer

Produce pulmonary surfactant

Answer

Facilitate gas exchange across the alveolar wall

Answer

Phagocytize inhaled foreign particles

Answer

Secrete mucus into the airway

Question 3

The pleural cavity is located between which two layers?

Accepted Answer

The visceral and parietal pleurae

Answer

The two lungs in the mediastinum

Answer

The lung parenchyma and the bronchi

Answer

The ribs and the intercostal muscles

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

Nasal cavity → trachea → larynx → bronchi → alveoli

Answer

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

Answer

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

Question 5

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

Accepted Answer

Terminal bronchioles

Answer

Secondary (lobar) bronchi

Answer

Tertiary (segmental) bronchi

Answer

Respiratory bronchioles

Question 6

Which nerve provides the primary motor innervation to the diaphragm?

Accepted Answer

Phrenic nerve (C3, C4, C5)

Answer

Vagus nerve (CN X)

Answer

Intercostal nerves (T1–T6)

Answer

Recurrent laryngeal nerve

Question 7

The costodiaphragmatic recess is clinically significant because:

Accepted Answer

It is the lowest point of the pleural cavity where fluid accumulates

Answer

It is where the aorta passes through the diaphragm

Answer

It marks the boundary between the right and left pleural sacs

Answer

It is the site of the cardiac notch