萨南山羊窦房结和房室结的形态学研究

Sedef SELVİLER SİZER, Y. Kabak, M. Kabak
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引用次数: 0

摘要

在哺乳动物中,窦房结和房室结被定义为心脏的特定刺激和传导系统。从窦房结开始的电刺激持续到房室结,节律性刺激以这种方式发生。不同种属间窦房室结的位置、大小和细胞结构存在差异。在本研究中,为了确定萨南山羊心脏窦和房室结的形态结构和位置,使用了9只健康山羊的心脏。常规组织随访组织学检查后,石蜡封样取5 μm厚的连续切片,用克罗斯曼三色染色和周期性酸希夫(PAS)染色并拍照。经确定窦结位于心外膜下位置,靠近颅腔静脉通向右心房的位置。窦结呈月牙形,平均长度8 ~ 10mm。房室结位于房间隔和室间隔右半部分的心内膜下层,冠状窦在此进入右心房。房室结平均长度为4.5 ~ 5mm,大致呈椭圆形。在两个淋巴结中发现两种类型的细胞:小而圆,细胞质空,细胞核较大的细胞;薄而细长的结构细胞,染色较深。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A morphological study on sinus and atrioventricular nodes in saanen goats*
In mammals, the sinus node and atrioventricular node are defined as the heart's specific stimulus and conduction systems. The electrical stimulation that starts in the sinus node continues with the atrioventricular node, and the rhythmic stimulation occurs in this way. There are differences in the sinus and atrioventricular nodes' location, size, and cell structures between species. In this study, which was carried out to determine the morphological structures and locations of the sinus and atrioventricular nodes in Saanen goat hearts, nine hearts from healthy goats were used. After performing the routine tissue follow-up procedure for histological examinations, 5 μm-thick serial sections taken from paraffin-blocked samples were stained with Crossman Trichrome and Periodic Acid Schiff (PAS) and photographed. It was determined that the sinus node was in a subepicardial position near where the cranial vena cava opens up to the right atrium. The sinus node, with an average length of 8-10 mm was crescent-shaped. The atrioventricular node was located in the subendocardium layer in the right half of the interatrial and the interventricular septum, where the coronary sinus opened into the right atrium. An atrioventricular node with an average length of 4.5-5 mm was observed to be roughly oval. Two types of cells were identified in both nodes: cells with small, rounded with empty cytoplasm and rather large nuclei, and cells with thin, elongated structures and darker staining.
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