To localise the brachial plexus you should start by localising the pulsating subclavian artery where it runs across the first rib
The branches of the brachial plexus are located just lateral to the artery
Track the branches of the brachial plexus proximally until they line up as a string of black pearls in the interscalene groove
Click on the VIDEO CLIP button to view the video
The video shows the tracking of the branches of the brachial plexus from the level of the subclavian artery to the interscalene groove SA = subclavian artery; BP = cluster of branches of the brachial plexus; ASM = anterior scalene muscle; MSM = middle scalene muscle
