Lung Anatomy Quiz

Which lung is indicated in the image?

• Right lung

• Left lung

Answer explanation

The image indicates the right lung, as shown in the question. Therefore, the correct choice is the Right lung.

What is the structure indicated by a star in the image?

• Oblique fissure

• Horizontal fissure

• Cardiac notch

Answer explanation

The structure indicated by a star in the image is the Oblique fissure, as highlighted in the correct answer choice.

What is the structure indicated by 4 called?

• • Lung hilum

• • Cardiac notch

• • Lingula

• • Apex of the lung

• • Pulmonary ligament

Answer explanation

The structure indicated by 4 is called Lingula, which is the tongue-like projection on the left lung's superior lobe.

What is the structure indicated by 5 called?

• • Lung hilum

• • Cardiac notch

• • Lingula

• • Apex of the lung

• • Pulmonary ligament

Answer explanation

The structure indicated by 5 is called the Cardiac notch.

What is the pleural cupula?

• A muscular structure that assists in lung expansion

• The uppermost part of the visceral pleura

• The portion of the parietal pleura extending into the neck over the lung summit

• A specialized type of alveolar structure in the lung tissue

Answer explanation

The pleural cupula is the portion of the parietal pleura extending into the neck over the lung summit.

Which structure forms a triangular-shaped fold between the lower part of the mediastinal surface of the lung and the pericardium?

• Bronchus

• Pulmonary ligament

• Pleural root

• Pericardium

Answer explanation

The structure that forms a triangular-shaped fold between the lower part of the mediastinal surface of the lung and the pericardium is the Pulmonary ligament.

The root of the left lung passes beneath the aortic arch and in front of the descending aorta.

• True

• False

Answer explanation

The root of the left lung does pass beneath the aortic arch and in front of the descending aorta, making the statement true.

The ______ nerve, pericardiacophrenic artery and vein, and the anterior pulmonary plexus lie in front of each lung root.

Answer explanation

The phrenic nerve lies in front of each lung root along with the pericardiacophrenic artery and vein, and the anterior pulmonary plexus.

Which of the following statements about pleural reflections is correct?

• The sternal line of pleural reflection marks the transition from costal pleura to mediastinal pleura posteriorly.

• The costal line of pleural reflection is a gradual curve where costal pleura becomes diaphragmatic pleura inferiorly.

• The vertebral line of pleural reflection is a sharp turn where costal pleura becomes mediastinal pleura anteriorly.

• Pleural reflections can occasionally form pocket-like spaces known as pleural recesses in the thoracic cavity.

Answer explanation

Pleural reflections can occasionally form pocket-like spaces known as pleural recesses in the thoracic cavity.

The visceral pleura is innervated by visceral afferent (autonomic) nerves via the _______ plexus.

Answer explanation

The visceral pleura is innervated by visceral afferent (autonomic) nerves via the pulmonary plexus.