Oukouchi H, Murakami T, Kikuta A
Department of Anatomy, Okayama University Medical School, Japan.
Okajimas Folia Anat Jpn. 1992 Aug;69(2-3):77-83. doi: 10.2535/ofaj1936.69.2-3_77.
The lumbrical and interosseous muscles in twenty-five feet of Japanese adult cadavers were dissected. The lumbrical muscles mainly continued into the dorsal aponeuroses or the terminal tendons of the extensor digitorum longus muscle, though they occasionally issued some accessory and slender tendons inserting into the bases of the proximal phalanges. Rarely, the lumbrical muscle showed an atavistic anomaly. In this anomaly, the lumbrical muscle was divided into two tails which continued into the bases of the proximal phalanges of the contiguous toes. The plantar and dorsal interosseous muscles were mainly attached to the bases of the proximal phalanges. Frequently, the plantar and dorsal interosseous muscles issued some accessory and small tendons continuing into the dorsal aponeuroses. This fact suggests that the plantar and dorsal interosseous muscles in the foot, like the palmar and dorsal interosseous muscles in the hand, are composite muscles derived from the flexor brevis, contrahens and other muscles.
对25例日本成年尸体的25只足部的蚓状肌和骨间肌进行了解剖。蚓状肌主要延续至背侧腱膜或趾长伸肌的终腱，不过它们偶尔会发出一些附着于近节趾骨基部的副腱和细腱。蚓状肌很少出现返祖异常。在这种异常情况下，蚓状肌分为两条肌腱，延续至相邻足趾近节趾骨的基部。足底和背侧骨间肌主要附着于近节趾骨的基部。足底和背侧骨间肌经常发出一些延续至背侧腱膜的副腱和小腱。这一事实表明，足部的足底和背侧骨间肌，与手部的掌侧和背侧骨间肌一样，是由短屈肌、对掌肌和其他肌肉衍生而来的复合肌。
