作者在对成年女性尸体上肢使用朱砂和牙托粉灌注制作上肢动脉铸型时发现左侧上肢的掌浅弓缺失,代之以异常的血管网,报道如下。从铸型标本上发现,桡动脉掌浅支十分细小,未端与尺动脉吻合,没有形成明显的掌浅弓。但桡动脉在距掌骨底9.40 cm处发出粗大的浅正中动脉,距分叉4.90 cm处,浅正中动脉直径为2.66 mm,与此处平行的桡动脉延伸处直径为3.54 mm,该处的尺动脉直径为3.20 mm。浅正中动脉未与尺动脉吻合,仅以直径为0.80 mm的细小动脉相连。浅正中动脉在掌部延伸为指掌侧总动 The authors found that the left upper extremity palmar arch was missing when the cadaveric upper limbs were used to make upper extremity arterial molds for adult female cadaver upper extremities and replaced by an abnormal vascular network as reported below. Found from the cast specimens, the radial artery palm superficial branch is very small, not the end with the ulnar artery anastomosis, did not form a clear palm armpit. However, the radial artery at 9.40 cm from the metacarpal issued a thick shallow middle artery at a distance of 4.90 cm from the bifurcation, the diameter of the shallow middle artery was 2.66 mm, and here parallel to the diameter of the radial artery extension was 3.54 mm, where the ruler Arterial diameter was 3.20 mm. The superficial midline artery is not anastomosed to the ulnar artery and is connected only by a small artery of 0.80 mm in diameter. Middle of the artery in the palm of your hand extended to the palmar side of the total move