palmar metacarpal artery

pal·mar met·a·car·pal ar·te·ry

(pahl'măr met'ă-kahr'păl ahr'tĕr-ē)
One of three arteries springing from the deep palmar arch and running in the three medial interosseous metacarpal spaces; they anastomose with the common palmar and, through perforating branches, with the dorsal metacarpal arteries.
Synonym(s): arteria metacarpalis palmaris, palmar interosseous artery.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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The common palmar digital artery supplying the contiguous side of index and middle fingers passed through the neural loop formed by the proper digital nerve supplying the radial side of the middle finger and joined with the unusually large first palmar metacarpal artery before dividing into proper digital arteries.
Three common palmar digital arteries arise from the convexity of the SPA, each joined by a corresponding palmar metacarpal artery from the deep palmar arch and divide into two proper palmar digital arteries which supply the medial four fingers.
The common palmar digital artery of SPA supplying the adjacent sides of the index and middle fingers passed through the neural loop formed by the proper digital nerve of median nerve supplying the radial side of the middle finger and joined with the unusually large first palmar metacarpal artery before dividing into proper digital arteries.