Kanbayashi T, Takafuji T, Sato Y
First Department of Anatomy, Kyorin University School of Medicine, Tokyo, Japan.
Okajimas Folia Anat Jpn. 1993 Mar;69(6):289-310. doi: 10.2535/ofaj1936.69.6_289.
The distribution of the arterial supply and innervation of skeletal muscle in the whole human body has been being researched in our laboratory. The results obtained on the biceps brachii from 25 bodies (50 sides) are reported here. Generally, in this muscle, A. coracobrachialis (Cb, SATO, 1980), a branch of A. axillaris (Ax), is distributed at the upper muscle bundles of the short head after running parallel to N. musculocutaneus (Nmc) and supplying M. coracobrachialis. The main artery (Ma), which is a branch of A. brachialis (Br), is distributed at the upper and middle parts of both heads, and the point where Ma enters the muscle bundles almost coincides with the point where R. brachialis (Rb) branches from Nmc. R. biceps brachii (Rbi), which is distributed only at this muscle and Om, the common trunk to other muscles, is distributed at the lower part of the muscle bundles. The arterial supply of this muscle was classified as follows according to the conditions of origin and its distribution. Type I: Ax(Cb) was distributed to the upper part of the muscle bundle. Type II: The absence of Ax(Cb) in the upper part of the muscle bundle. Type A, a and 1: Ma.Br(Om) supplying the long, short and both heads of the biceps brachii. Type B, b and 2: Ma.Br(Rbi) supplying the long, short and both heads of the biceps brachii. In the long head, Type II-A accounted for 62.0%, Type II-B for 30.0%. In the short head, Type I-a was 62.0%, Type I-b 28.0%. In both heads, Type I-1 was 62.0%, Type I-2 28.0%. There were significant differences in the distribution of the nutrient arteries between the long and short heads. A. brachialis superficialis (Bs) was recognized in 3 of these cases (2 cases of Type III and 1 case of Type VII by Adachi's classifications), which were rare cases. In these cases, arterial branches other than Cb branching from A. brachialis profunda are branches of Bs. This means, judging from ontogeny, that Bs, the blood vessels in the superficial layer, supplies this muscle, which belongs to the superficial layer of the brachium.
我们实验室一直在研究人体全身骨骼肌的动脉供应和神经支配分布情况。本文报告了对25具尸体（50侧）肱二头肌的研究结果。一般来说，在这块肌肉中，腋动脉（Ax）的分支肱肌动脉（Cb，佐藤，1980年）在与肌皮神经（Nmc）平行走行并供应肱肌后，分布于短头的上部肌束。肱动脉（Br）的分支主要动脉（Ma）分布于两头的上部和中部，Ma进入肌束的点几乎与肱肌支（Rb）从Nmc分出的点重合。肱二头肌支（Rbi）仅分布于该肌肉，而其他肌肉的共同干Om分布于肌束下部。根据其起源和分布情况，该肌肉的动脉供应分类如下。I型：腋动脉（Cb）分布于肌束上部。II型：肌束上部无腋动脉（Cb）。A型、a型和1型：肱动脉（Ma.Br）（Om）供应肱二头肌的长头、短头和两头。B型、b型和2型：肱动脉（Ma.Br）（Rbi）供应肱二头肌的长头、短头和两头。在长头中，II - A型占62.0%，II - B型占30.0%。在短头中，I - a型为62.0%，I - b型为28.0%。在两头中，I - 1型为62.0%，I - 2型为28.0%。长头和短头的营养动脉分布存在显著差异。在其中3例中发现了肱浅动脉（Bs）（根据足立分类法，2例为III型，1例为VII型），这些是罕见病例。在这些病例中，除了从肱深动脉分出的Cb以外的动脉分支都是Bs的分支。从个体发生来看，这意味着表层血管Bs供应这块属于肱部表层的肌肉。
