A&P of Thoracic

Question 1

How many lobes are on each side and what do they contain?

Answer 1

Right lung: three lobes
Left lung: two lobes and a lingula
Lobes contain
-Blood vessels
-Lymphatics
-Nerves 
-Alveolar ducts connecting with alveoli
-Alveoli, as many as 300 million in adult

Question 2

What three things happen to air as it travels through the trachea and bronchi?

Answer 2

Filtered
Humidified
Warmed

Question 3

Where is the trachea located?

Answer 3

Trachea lies anterior to the esophagus and posterior to the isthmus of the thyroid.

Question 4

Where does the bronchus split and how many main branches doe sit split into on each side?

Answer 4

Divides into the right and left main bronchi at about the level of T4 or T5 and just below the manubriosternal joint
The main bronchi are divided into three branches on the right and two on the left.

Question 5

Which bronchiole is more susceptible to aspiration?

Answer 5

Right bronchus wider, shorter, and more vertically placed than the left bronchus (and therefore more susceptible to aspiration of foreign bodies)