Morphological Study of the Sinus Node and Its Artery in Yak
Morphological Study of the Sinus Node and Its Artery in Yak
复制标题
牦牛窦房结及其动脉的形态学研究
DOI：
10.1002/ar.22591
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发表时间：
2012-12-01
影响因子：
2
通讯作者：
Cui, Yan
中科院分区：
文献类型：
--
作者：
Duan, Deyong;Yu, Sijiu;Cui, Yan
用组织学方法和透射电镜对牦牛窦房结进行了研究。用铸型注射法、血管造影法和组织学方法对牦牛窦房结动脉进行了测定。结果表明，牦牛窦房结内含有广泛的胶原骨架和两种主要类型的细胞：起搏细胞（P细胞）和移行细胞（T细胞）。与T细胞相比，P细胞具有核周透明带，肌原纤维较少，线粒体较小。T细胞比P细胞更长、更细，形状多种多样。窦房结周围有许多神经纤维和神经节。缝隙连接与缝隙连接蛋白43抗体无反应，但在牦牛窦房结中央部电镜下可检测到缝隙连接。牦牛窦房结动脉起源于左冠状动脉者占98%，而起源于右冠状动脉者仅占2%。动脉位于窦房结周围。它有一个内部的弹性膜在整个过程中，并发现一个大的神经束在纵向方向运行。Anat Rec，295：2045-2056，2012. (C)2012 Wiley Periodicals，Inc.
The sinus node of yak has been studied by the histological methods and transmission electron microscopy. The sinus node artery of yak was also determined by the injection-corrosion casting technique, the angiography, and histological methods. The results showed that the sinus node of yak contained an extensive framework of collagen and two main type cells: pacemaker cells (P cells) and transitional cells (T cells). The P cells had a perinuclear clear zone, contained less myofibrils, and appeared smaller mitochondria than T cells. The T cells were longer and slender than P cells, and had a variety of shapes. At the periphery of sinus node there were many nerve fibers and ganglions. Gap junction did not reveal reaction with anti-connexin43, but it was detected by electron microscopy in the central part of sinus node of yak. The sinus node artery of yak originated from left coronary artery more frequently (98%) than by right (2%). The artery located at the periphery of sinus node. It had an internal elastic membrane throughout its course, and a large nerve bundle was found running in a longitudinal direction. Anat Rec, 295:2045-2056, 2012. (C) 2012 Wiley Periodicals, Inc.