<prompt> Which amongst the following is not a branch from the root of brachial plexus?Branches to longus colli and scaleni musclesLong Thoracic NerveDorsal Scapular NerveNerve to subclavius  <response>: BRANCHES FROM ROOTS ARE: Nerve to serratus anterior long thoracic nerveC5-C7. It only supplies serratus anterior muscle. Nerve to rhomboids dorsal scapular nerve-C5. It supplies rhomboid major and rhomboid minor muscles. Branches to longus colli and scaleni muscles C5-C8 and branch to phrenic nerveC4. Branches of trunks: SuprascapularC5,C6 Nerve to subclanC5, C6 REF: BD Chaurasia edition 7th page no:58. 