plzz explain this - phoenixmle00

[ArchivalUser]

A patient with all the symptoms of pleural effusion for 2 weeks with blunting of the left costophrenic angle with an air fluid level...A diagnosis of pneumonia with pleural effusion made....A chest tube is passed through the lower border of the fifth rib....Which of the following structures is most likely damaged...?

1.intercostal nerve
2.intercostal artery
3.intercostal vein
4.internal intercostal muscle

[ArchivalUser]

I have read that it is neurovascular bundles....how do i figure out which one

[ArchivalUser]

Intercostal groove containing V,A, N lies lower border of the ribs. So, 4 is answer. Am I right?

[ArchivalUser]

Sorry , VAN lies upper border of the rib