part of adult scutum scutal angle Fig 11,12,13 Abbr: Sca in ISBN:0-937548-00-6. TGMA:0000285 TGMA:0000285 The more or less distinct angular projection of the scutal margin just anterior to the prescutal suture or just in front of prespiracular area when the prescutal suture is not discernible. default_namespace humeral callus