Mumford J, Morecraft R, Blair W F
J Hand Surg Am. 1987 May;12(3):361-5. doi: 10.1016/s0363-5023(87)80004-7.
The gross and interfascicular anatomy of the terminal portion of the thenar (or recurrent median) nerve was defined by a microdissection of 20 fresh-frozen cadaveric hands. The traditionally described pattern of one main thenar trunk with three terminal branches, one each to the abductor pollicis brevis, opponens pollicis, and flexor pollicis brevis muscles, was observed in nine specimens (45%). One main trunk with two terminal branches (one branch to the abductor and one to the opponens, but no branch to the flexor) was seen in six specimens (30%). The remaining five specimens (25%) exhibited four other terminal patterns with either two, three, or four branches off the main trunk. In 15 specimens (75%), a previously undescribed "accessory thenar nerve" (ATN) arose from either the first common digital nerve (25%) or the radial proper digital nerve to the thumb (50%). The ATN innervated the flexor pollicis brevis.
通过对20只新鲜冷冻尸体手进行显微解剖，明确了鱼际（或正中返支）神经终末部分的大体和束间解剖结构。在9个标本（45%）中观察到传统描述的模式，即一条主要的鱼际干有三个终末分支，分别支配拇短展肌、拇对掌肌和拇短屈肌。在6个标本（30%）中看到一条主要干有两个终末分支（一个分支支配外展肌，一个分支支配对掌肌，但没有分支支配屈肌）。其余5个标本（25%）表现出另外四种终末模式，主干有两个、三个或四个分支。在15个标本（75%）中，一条先前未描述的“副鱼际神经”（ATN）发自第一指总神经（25%）或拇指桡侧固有指神经（50%）。ATN支配拇短屈肌。
