Thoracic anatomy

Question 1

How many lobes does the right lung have?

Answer 1

3

Question 2

How many lobes does the left lung have?

Answer 2

2

Question 3

Innervation of the diaphragm

Answer 3

Phrenic nerve C3-C5

Question 4

Which bronchus do inhaled foreign bodies generally go into and why?

Answer 4

The right main bronchus because it is wider and more vertical than the left.

Question 5

The oesophagus can be compressed at which 4 locations?

Answer 5

The pharyngo-oesophageal junction.
Where it is crossed by the arch of the aorta.
Where it is compressed by the left main bronchus.
At oesophageal hiatus in the diaphragm (T XI)