palmar arch


: either of two loops of blood vessels in the palm of the hand:
: a deeply situated transverse artery that is composed of the terminal part of the radial artery joined to a branch of the ulnar artery and that supplies principally the deep muscles of the hand, thumb, and index finger

called also deep palmar arch

: a superficial arch that is the continuation of the ulnar artery which anastomoses with a branch derived from the radial artery and that sends branches mostly to the fingers

called also superficial palmar arch

Dictionary Entries Near palmar arch

Cite this Entry

“Palmar arch.” Medical Dictionary, Merriam-Webster, Accessed 23 Jun. 2024.

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