Mezzogiorno A, Passiatore C, Mezzogiorno V
Institute of Normal Human Anatomy, 2nd University of Naples School of Medicine and Surgery, Italy.
Acta Anat (Basel). 1994;149(3):221-4. doi: 10.1159/000147580.
The deep palmar circulation is constituted by the deep palmar arch. In most cases this is a complete arch formed by the radial artery and its continuation to a deep branch of the ulnar artery. In a few cases, the deep palmar circulation is formed only by the radial or the ulnar artery. Only rarely is there a complete absence of the deep palmar arch. A series of 60 vascular casts was examined in order to identify the primary variants of the deep palmar arterial supply. Four anatomic patterns were identified: (1) radioulnar (66.67%); (2) radial-anastomotic (21.67%); (3) radial (8.33%), and (4) ulnar (3.33%). Two distinct types of the radioulnar variant were observed, a proximal and a distal one, named according to the origin of the deep palmar branch.
手掌深部循环由掌深弓构成。在大多数情况下，这是一个完整的弓，由桡动脉及其延续至尺动脉深支形成。在少数情况下，手掌深部循环仅由桡动脉或尺动脉形成。掌深弓完全缺如的情况极为罕见。为了确定手掌深部动脉供应的主要变异类型，对60个血管铸型进行了检查。识别出四种解剖模式：(1) 桡尺型 (66.67%)；(2) 桡吻合型 (21.67%)；(3) 桡型 (8.33%)，以及 (4) 尺型 (3.33%)。观察到桡尺型变异有两种不同类型，近端型和远端型，根据掌深支的起源命名。
