The profunda femoris artery may arise from the lateral aspect of the femoral artery at the level of the inguinal ligament, in which case two main arteries enter the limb; or it may arise four inches below the inguinal ligament, in which case but one artery traverses the femoral triangle; usually (75% of cases, Quain), it takes origin between one and two inches below the ligament. It is only slightly smaller than the continuation of the femoral artery itself, and is therefore no mean vessel.
February 2004. Arch Surg. 2004;139(2):129. doi:10.1001/archsurg.139.2.129
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