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本研究用注射、化学清洁和透明法,观察了166侧不同年龄(6(1/2)月胎儿～89岁)新鲜尸体掌骨的动脉供应。掌骨的血液供应主要来自滋养动脉、骨膜动脉、骺-干骺动脉和假骺动脉。滋养动脉的升、降支发出放射状小支进入骨皮质,供应皮质内2/3～3/4;骨膜动脉发出少量小支进入骨皮质,供应皮质外1/3～1/4;骺-干骺动脉和假骺动脉主要供应掌骨的两端。掌骨滋养动脉的来源随骨而异。第1掌骨的滋养动脉恒定来自拇主要动脉,其他掌骨的主要来自掌心动脉、掌深弓及其穿支。掌骨的骨膜动脉来自拇主要动脉、掌心动脉、掌背动脉、掌深弓及其穿支。这些骨膜动脉支在各掌骨骨膜内分支吻合,形成丰富的襻状血管网。掌骨的骺-干骺动脉和假骺动脉,主要起自位于各掌骨近、远端的近、远侧动脉环。
In this study, the arterial supply of fresh cadaveric metacarpal was observed in 166 sides of different ages (6 (1/2) months fetuses ~ 89 years old) by injection, chemical cleaning and transparent method. Metacarpal blood supply comes mainly from nourishing the arteries, periosteal arteries, epiphyseal-epiphyseal arteries and epiphyseal arteries. Nourish the artery ascending, descending branch issued a radial small branch into the cortical bone, the supply of cortical 2/3 ~ 3/4; a small amount of small periosteal artery into the cortical bone supply cortical 1/3 ~ 1/4; epiphysis - dry Epiphyseal and epiphyseal arteries are the main supply of metacarpal ends. The source of metacarpal nourishment artery varies with bone. The first metacarpal nourish artery from the thumb main artery, the other mainly from the palm of the palm of the hand artery, palm bow and its perforation. The periosteal arteries of the metacarpal come from the auricular artery, palm artery, dorsal metacarpal artery, the deep palmar arch and its perforator. These periosteal artery branches in the metacarpal periosteal anastomosis, the formation of a wealth of 襻 shaped vascular network. Metacarpals of the metacarpal - epiphyseal and epiphyseal arteries, mainly from the proximal and distal metacarpal, distal and proximal arterial rings.