摘要
本文观察了181例(成人73,儿童108)手掌侧浅层动脉。掌浅弓类型:尺动脉型(36.5%)、桡尺动脉型(50.8%)、正中尺动脉型(10.5%)、桡正中尺动脉型(2.2%)。前二者具有非常显著的年龄差异,成人尺动脉型为儿童的2倍以上,桡尺动脉型则反之。作者认为主要是由于大鱼际处受压所致。男性尺动脉型多于女性,也可能是该原因。掌浅弓的分支可为2~6支,其中4支者占53.0%、5支者占30.9%;按分支的排列形式,有并列型(61.3%)、共干型(26.0%)、间隔型(8.3%)和混合型(4.4%)。共干多出现在尺侧分支,而间隔多出现在桡侧大鱼际处。我们认为,后者可能也与该处易受压有关。掌浅弓分支在手指的分布率,从尺侧向桡侧递减。
A total of 181 upper limbs(73 adults,108 children)of Chinese were studied.The main results are as follows:1.The types of the superficial volar arch:the ulnar arterial type(U-type)occurred in 36.5±3.58%,the radial-ulnar arterial type(RU-type)in 50.8±3.72%,the median-ulnar arterial type(MU-type)in 10.5+2.28%and the radial-medianulnar type(RMU-type)in 2.2±1.09%.There are obvious differences between adults and children in the U and RU types.The occurrence of U-type in adults is twice as that in children and that of the RU-type is vice versa.We suggest that it might be the result of the pressure of the thenar.The U-type in males is more than that in females,it might result from the same factor.2.The arrangements of the branches of the superficial volar arch are divided into four types:the juxtaposed type occurred in 61.3±3.62%,the common trunk type in 26.0±3.26%,the intervalic type in 8.3±2.05%and the mixed type in 4.4±1.52%.It was found that the common trunks occur more often in the ulnar side,and the intervalic in the radial side of the hand.These,too,might be due to the pressure of the thenar.The number of the branchs of the superficial volar arch is 2~6;among them,the 4-branch type takes major part(53.0±3.71%).The next one is 5-branch type(30.9±3.43%).3.The distribution of arteries derived from the superficial volar arch are divided into two types:the juxtaposed type and the intervalic type occurred in 87.3±2.47%and 12.7±2.47%respectively.The position of the interval is more common in the index finger and the finger artery derived from the superficial volar arch is gradually decreased from the ulnar side to the radial side.
作者
丁士海
谭允西
Ding Shihai;Tan Yunxi(Yishui Medical College,Yishui,Shandong;Qingdao Medical College,Qingdao)
出处
《解剖学报》
CAS
1985年第3期233-238,共6页
Acta Anatomica Sinica
关键词
掌浅弓
掌浅弓分支
指动脉
年龄差异
性别差异
Superficial volar arch
Branches of the superficial volar arch
Finger arteries
Difference of age
Sexual difference
