Proper palmar digital arteries
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| Artery: Proper palmar digital arteries | |
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| Palm of left hand, showing position of skin creases and bones, and surface markings for the volar arches. Only the proximal origin parts of the proper palmar digital arteries are shown. | |
| Latin | arteriae digitales palmares propriae |
| Gray's | subject #152 598 |
| Supplies | fingers |
| Source | common palmar digital arteries |
| Vein | palmar digital veins |
| Dorlands / Elsevier |
a_61/12154137 |
The proper palmar digital arteries travel along the sides of the phalanges (along the contiguous sides of the index, middle, ring, and little fingers), just posterior to the corresponding digital nerve.
Alternative names for these arteries are:[1] proper volar digital arteries[2], collateral digital arteries[3], arteriae digitales palmares propriae[4], or aa. digitales volares propriae.[5]
They anastomose freely in the subcutaneous tissue of the finger tips and by smaller branches near the interphalangeal joints.
Each also gives off a couple of dorsal branches which anastomose with the dorsal digital arteries, and supply the soft parts on the back of the second and third phalanges, including the matrix of the fingernail.
The proper palmar digital artery for the medial side of the little finger arises directly from the ulnar artery deep to the palmaris brevis muscle, but the rest arise from the common palmar digital arteries.
[edit] See also
[edit] Footnotes and references
- ^ Physiology of adult Homo sapiens - Systemic blood and lymph circulation (angiology)
- ^ Palmar and volar may be used synonymously, but volar is less common.
- ^ Thus called because they run alongside (collateral to) the finger bones.
- ^ This is the official and international Latin term as defined by the Terminologia Anatomica (TA), but in English speaking countries and especially the US, proper palmar digital arteries is more commonly used.
- ^ Again, palmar and volar may be used synonymously, but aa. digitales volares propriae does not occur in the TA, and can therefore be considered deprecated.
[edit] External links
- proper+palmar+digital+arteries at eMedicine Dictionary
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