Imaging of common respiratory diseases

Question 1

How many lobes does the right and left lung each have?

Answer 1

Right = 3 lobes (superior, inferior and middle)

Left = 2 lobes (superior and middle)

Left superior lobe extends from apex all the way down to the lingula and sits more posterior than anterior

Question 2

What is situated in the left lobe?

Answer 2

Part of the heart is situated in the aspect of the left lobe

Question 3

What is the trachea made up of?

Answer 3

20-25 cartilaginous rings

• going into primary bronchioles division at the carena
• (bifurcation part)
• lies along T4
• as we go down it branches into lung hylem
• connection aspect
• heart
• pulmonary trunk
• pulmonary arteries into lungs
• deoxygenated for oxygenation
• return via pulmonary veins
• the hylem is the areas of what we look at
• apex to the lungs is attached to superior aspect of thoracic cage
• comes down to horizontal fissure (RIGHT ONLY) and oblique fissure on the right hand side separating two lobes
• when using stethoscopes
• on left hand side oblique fissure is on the posterior aspect
• oblique separate superior and inferior lobes
• and middle lobe
• on the left hand side we only have the oblique fissure
• right hand side more vertical naturally bc of heart situation helps with shifting
• commonly for children it will choke it will come down the right aspect
• bronchioles have superior, middle and inferior lobes
• and the same on the left but only middle
• INTERESTING POINT:

superior lobe anterior all the way down to lingula (tongue)

• zones
• left is life
• right is return
• C3C4C5 keep diaphragm alive
• right phrenic nerve passes anterior
• left phrenic go over to innervate diaphragm heart
• vagus nerve longest nerve is the wonderer and continues to infiltrate oesophagus aspect as well rest and digest