Which branch of subclan aery directly contributes to scapular anastomosis:

d) Dorsal scapular > c) Thyrocervical truck Dorsal scapular aery is a direct branch from subclan aery paicipating in scapular anastomosis. Thyrocervical trunk do not paicipate in scapular anastomosis directly. It gives branches (like suprascapular aery and sometime dorsal scapular aery) to contribute to scapular anastomosis.Note: Dorsal scapular aery is usually a branch of third pa of subclan aery. Sometime it may be given by 1st pa of subclan aery ( 1st pa of subclan aery - Thyrocervical trunk - transverse cervical aery - Dorsal scapular aery).