Pulmonary cavities

Question 1

Thoracic cage boundaries

Answer 1

Anteriorly: Sternum
Laterally: 12 pairs of ribs and the costal cartilage
Posteriorly: Thoracic vertebrae (T1-T12)

Question 2

Sternal Angle

Answer 2

Manubriosternal joint, between manubrium and body of sternum

Question 3

Pulmonary cavities

Answer 3

Bilateral compartments, each containing lung and pleurae

Question 4

Mediastinum

Answer 4

Central compartment of the thoracic cavity, containing the heart and structures that move air, blood and food (Trachea, vessels, and esophagus)

Question 5

Divisions of Mediastinum

Answer 5

Superior mediastinum (above sternal angle between T4 and T5)
Inferior mediastinum (divided into Anterior, middle and posterior)

Question 6

Superior Mediastinum

Answer 6

Great vessels and branches (or tributaries)
Esophagus
Trachea

Question 7

Middle Mediastinum

Answer 7

Heart, pericardium, roots of great vessels

Question 8

Posterior Mediastinum

Answer 8

Thoracic aorta, esophagus, azygos, and hemi-azygos vein and tributaries

Question 9

Apex of lungs

Answer 9

travels into the root of the neck, exits the thorax

Question 10

Fissures of the lungs

Answer 10

Horizontal Fissure: R Lung
Oblique Fissure: L+R Lungs

Question 11

Lobes of each lung

Answer 11

Right: Superior, middle, and inferior
Left: Superior and inferior

Question 12

Differences between left and right lung

Answer 12

The left lung has a cardiac notch (due to the heart) and Lingula (tongue-like process below notch)
The Left Lung only has one fissure
Left lung is smaller