Fig. 8. UPDA and radialis indicis artery arising from the FPMA. CPDA, common palmar digital artery; 2, 3, 4, CPDA; DMA, digiti minimi artery; FPMA, first palmar metacarpal artery; RA, radial artery; RIA, radialis indicis artery; UPDA, ulnar palmar digital artery; UA, ulnar artery; white arrow muscular branch to thenar muscles from UA, according to Gnanasekaran and Veeramani [
18]. Adapted from Gnanasekaran and Veeramani. Surg Radiol Anat 2019;41:791-9 [
18].