A view on the anatomy of the ureterovesical junction.
A view on the anatomy of the ureterovesical junction.
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输尿管膀胱连接部的解剖视图。
DOI：
10.3109/00365599309180449
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发表时间：
1993
影响因子：
--
通讯作者：
N. Dabhoiwala
中科院分区：
文献类型：
--
作者：
J. Noordzij;N. Dabhoiwala
作为评估输尿管膀胱连接功能研究的一部分，对 8 个成人和 2 个胎儿膀胱进行了两个方向的宏观和显微解剖。在三角形区域中，逼尿肌由 3 个或多或少呈三角形的层组成。两个输尿管仅被主要源自膀胱的纤维肌鞘松散地包裹。这种设计允许输尿管在其倾斜路线上轻松地穿过膀胱壁移动。输尿管肌纤维仅在鞘中起一小部分或连接逼尿肌。大多数呈扇形散开，终止于膀胱粘膜或与源自对侧输尿管的纤维混合。由于可以证明复杂的肌肉结构，因此正常人膀胱中存在活性抗反流肌肉成分似乎是合理的。经典的输尿管括约肌机制并不存在。我们的研究结果进行了讨论，并与文献中的数据进行了比较。
Macro- and microscopic dissection of 8 adult and 2 fetal human bladders was undertaken in two directions as part of a study to evaluate ureterovesical junction function. In the trigonal region the detrusor muscle consists of 3, more or less triangular layers. Both ureters are only loosely enveloped by a fibromuscular sheath of mainly bladder origin. This design allows for easy movement of the ureters on their oblique course through the bladder wall. The ureteral muscle fibers play only a minor part in the sheath or join the detrusor muscle. The majority fan out to end at the bladder mucosa or intermingle with fibers originating from the opposite ureter. Since an intricate muscular structure can be demonstrated, an active anti-reflux muscular component in the normal human bladder seems plausible. A classic ureteral sphincter mechanism does not exist. Our findings are discussed and compared with data from the literature.