if you were to put a needle through intercostal space what would the needle go through

subcutaneous tissue

superficial and deep fascia

(3 layers of intercostal muscles)

layer1 = external intercostals (it runs infromedially)

layer 2 = internal intercostals (they run infrolaterally)

layer 3 = innermost intercostals ( infrolaterally)

parietal pleura