The superficial palmar arch is formed predominantly by the ulnar artery, with a contribution from the superficial palmar branch of the radial artery. However, in some individuals the contribution from the radial artery might be absent, and instead anastomoses with either the princeps pollicis artery, the radialis indicis artery, or the median artery, the former two of which are branches from the radial artery.
Surface anatomy of Superficial
palmar arch with points
1st point – just lateral to the pisiform bone
2nd point – middle of the thenar eminence
Join these points by a convex line directed downwards
Related questions:
How superficial palmar arch is formed?
By terminal branch of ulnar artery and superficial palmar branch of the radial artery.
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