Thorax 2(lungs)

Question 1

How many compartments is the thoracic cavity divided into?

Answer 1

Thoracic cavity divided into 3 compartments

Question 2

Why are the compartments in not the same dimensions in the thoracic cavity?

Answer 2

Due to the heart, not the same dimensions

Question 3

Where are the 3 components of the thoracic cavity found?

Answer 3

• One on each side for the lungs

- A central one where the heart is found

Question 4

What is the mediastinum?

Answer 4

Mediastinum is the space between both lungs inside the chest cavity

Question 5

What is the pleural cavity?

Answer 5

Pleural cavity is thin fluid space between the visceral and parietal pleura

Question 6

What fissure is only present in the right lung but not the left and at what rib is it found in?

Answer 6

• Horizontal fissure only in right lung

- Found in 4th rib

Question 7

What rib is the oblique fissure found in both right and left lung?

Answer 7

Oblique fissure is found in 6th rib

Question 8

Why is the right main bronchus clinically important and due to what reason does this occur?

Answer 8

Right main bronchus clinically important as kids can get coin stuck here. This is due to it being vertical

Question 9

Where is the phrenic and vagus nerve located in the lungs, relative to the lung

Answer 9

• Phrenic nerve is posterior relative to the lung

- Vagus nerve is anterior relative to the lung

Question 10

What is the azygos vein and where does it drain?

Answer 10

Azygous vein is where drainage of the posterior intercostal area for venous system as well as lower abdomen area. Drains into vena cava.