绵羊卵巢动脉及其分支的解剖学特征

doi:10.11843/j.issn.0366-6964.2017.08.009

摘要/Abstract

摘要：

旨在用管道铸型技术制作绵羊卵巢动脉立体构筑标本，观察其形态特征及分布规律，分析其功能相关性，为绵羊生殖生理及卵巢解剖学研究奠定基础。采集20只藏绵羊子宫及卵巢样本，用8%丙烯腈-丁二烯-苯乙烯共聚物（ABS）铸型剂通过卵巢动脉进行灌注，获得卵巢动脉风干及腐蚀标本，通过观察或图片采集分析其解剖学特性。研究发现，绵羊的卵巢动脉包括卵巢支、子宫支及输卵管支，并有更小分支向系膜供血；卵巢支螺旋动脉可分为重螺旋、螺旋及轻螺旋3种不同形态，部分个体有分支螺旋动脉伴行；进入卵巢后，卵巢微动脉在卵巢门髓质部呈拳头状重螺旋折叠，末端发出卵泡或黄体微动脉。结果表明，绵羊卵巢动脉及其分支与普通牛类似，其卵巢支呈复杂的螺旋形盘绕特征，推测能降低血压、维持卵巢供血稳定性及促进优势卵泡成熟。

Abstract:

To obtain three-dimensional model of sheep's ovarian artery, analyze its characteristics of morphology, distribution and relevant functions, which would provide reference for studies of reproductive physiology and ovarian anatomy in sheep. Uteruses and ovaries from 20 Tibetan sheep were collected, and their vessels' perfusion in ovarian arteries were performed with 8% ABS to obtain vascular casts, and then the anatomical characteristics were determined by investigating and analyzing casts. Results showed that sheep ovarian artery containing ovarian, uterine and fallopian tube branches and the slender branches supplied blood to mesenteries. Ovarian spiral arteries had 3 different shapes including intensive, ordinary and slight coiling and there was occasionally an additional spiral branch to adhere arterial trunk. Furthermore, ovarian artery showed a shape of spiral fist with intensive coiling at the ovarian hilum, and then the fist arises arterioles toward follicles or corpus luteums. Results indicated that sheep ovarian artery was similar to that of cattle, and anatomical characteristics with the intricate spirals and coiling in ovarian arterial configuration might lower blood pressure, maintain the stability of blood supply to ovaries and promote the maturation of dominant follicles.

中图分类号:

S826
S852.14

王欣荣, 杨雅楠, 梁翕, 叶秀甜. 绵羊卵巢动脉及其分支的解剖学特征[J]. 畜牧兽医学报, 2017, 48(8): 1452-1458.

WANG Xin-rong, YANG Ya-nan, LIANG Xi, YE Xiu-tian. The Anatomical Characteristics of Ovarian Artery and Its Branches in Sheep[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2017, 48(8): 1452-1458.

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