Jurjus A, Sfeir R, Bezirdjian R
Anat Rec. 1986 May;215(1):82-3. doi: 10.1002/ar.1092150112.
The anomalous brachial artery, after giving off a profunda brachii artery with no collaterals, divides in its upper one-third into two equal-sized arteries, brachial arteries #1 and 2. These arteries lie next to each other in the normal path of the brachial artery. Brachial artery #1 is possibly a high-origin and persisting radial artery. It gives no collaterals in the arm. At the cubital fossa, it becomes subcutaneous and divides into two equal-sized radial and ulnar arteries. These arteries run completely superficial to flexor muscles of the forearm and are terminated by branches running above the thenar and hypothenar eminences, respectively. Brachial artery #2 is possibly a high-origin artery of the common interosseous. The course of this artery resembles the course of the brachial axial artery of the embryo. It supplies the anterior compartment of brachial muscles and continues as the common interosseous artery. This common interosseous artery in turn branches into the superior and inferior ulnar collaterals, and the anterior and posterior interossei. It does not regress, but has a major role in forming the deep palmar arterial arch in the hand. The clinical implications of such an anomaly are discussed.
异常肱动脉在发出一条无侧支的肱深动脉后，在其近端三分之一处分为两条等粗的动脉，即肱动脉#1和肱动脉#2。这些动脉在肱动脉的正常走行路径中彼此相邻。肱动脉#1可能是高位起源且持续存在的桡动脉。它在臂部不发出侧支。在肘窝处，它变得表浅并分为两条等粗的桡动脉和尺动脉。这些动脉完全走行于前臂屈肌的浅面，并分别以在鱼际和小鱼际隆起上方走行的分支为终点。肱动脉#2可能是高位起源的骨间总动脉。该动脉的走行类似于胚胎肱轴动脉的走行。它供应肱肌前侧肌间隔，并延续为骨间总动脉。这条骨间总动脉继而分支为尺侧上副动脉、尺侧下副动脉以及骨间前动脉和骨间后动脉。它不会退化，而是在手部形成掌深动脉弓中起主要作用。文中讨论了这种异常的临床意义。
