<prompt> Artery not involved in Vascular anastemosis around AcromianThyrocervical TrunkThoracoacromial trunkAnterior circumflex humeral arteryPosterior circumflex humeral artery  <response>: Acromial Branch of Thyrocervical Trunk Branch of 1st part of Subclavian artery.Acromial Branch of Thoracoacromial trunk Branch of 2nd part of Axillary artery.Acromial branch of posterior circumflex humeral artery form anastomosis around Acromian. 