山羊子宫内胆碱能神经分布及妊娠时的变化  

Distribution of Cholinergic Nerves in Nonpregnant Uteri and the Nervous Change in Pregnant Goat Uteri

作　　者：滕可导[1] 李莲军[2] 陈耀星[1] 刘济五[1] 

机构地区：[1]中国农业大学动物医学院,北京100094 [2]云南农业大学动物科技学院,云南昆明650201

出　　处：《中国兽医学报》2001年第2期156-158,共3页Chinese Journal of Veterinary Science

基　　金：国家自然科学基金资助项目! (395 0 0 10 8)

摘　　要：采用乙酰胆碱酯酶组化法 ,研究了山羊子宫内胆碱能神经的分布。结果 ,山羊子宫颈部神经较丰富 ,在浆膜和肌层内有神经束伴血管而行并分支分布于血管壁 ,在粘膜及其皱褶上皮下、粘液腺上皮下有神经丛分布 ,妊娠时子宫颈部的神经分布与未妊娠时相比无明显变化 ;子宫角部神经密度均低于子宫颈部 ,其内环行肌层中及其与内膜交界处神经密度略高 ,神经束伴血管而行并分支分布于血管壁 ,在子宫腺上皮下及内膜上皮下无神经分布 ,妊娠时除胎盘内无神经分布外 ,仍有神经束伴血管而行并分支分布于血管壁 ,但分布于血管壁的神经纤维减少。结果提示 ,胆碱能神经主要支配山羊子宫内血管壁及颈部粘液腺上皮和粘膜上皮 ,妊娠时子宫颈部胆碱能神经无明显变化 。The distribution of acetylcholinesterase(AChE) positive nerves in nonpregnant and midpregnant goat uteri was studied histochemically with light microscope.In the nonpregnant and midpregnant cervixes numerous nerve bundles ran with blood vessels in the adventitia and muscular coat and they gave branches innervating the blood vessels.The nerves also formed nervous network under cervical glandular epithelium and mucosal epithelium.No nerve cell bodies were seen in the cervix.The nerve distribution showed no significant difference between nonpregnant and midpregnant goat cervixes.The nerve density in uterine horn was lesser than that in cervix.In the nonpregnant uterine horn the nerve bundles ran with blood vessels and gave branches innervating blood vessels.In midpregnant uterus the placentae formed in both nonpregnant and pregnant horns.The placentae had no nerves.The nerve bundles ran with blood vessels and gave brunched innervating the blood vessels,but the nerve fibres innervated the blood vessels decreased.No nervous network was found under endometrical epithelium and uterine glandular epithelium in the nonpregnant and midpregnant uteri.The results suggest that AChE positive nerves mainly innervate blood vessels in goat uterus and cervical grandular epthelium and mucsal epithelium.The nerve distribution has no significant difference between nonpregnant and midpregnant cervixes.The nerves innervated blood vessels in the pregnant uterus decrease.The placentae have no nerves innervating.

关 键 词：山羊 子宫 胆碱能神经 妊娠 分布 乙酰胆碱酯酶组化法 

分 类 号：S827.1[农业科学—畜牧学] S852.16[农业科学—畜牧兽医]