在Cuniculus pacaca的尿路中,胎儿的发育
Diego Ferreira de Sousa1, Frederico Ozanan Barros Monteiro2, Pedro Mayor3
1Postgraduate Program in Animal Health and Production in Amazonia (PPGSPAA), Federal Rural University of the Amazon (UFRA), Belém, Pará, Brazil.
Microscopy research and technique
|June 27, 2024
概括
在Cuniculus paca中,胎儿尿路发育在妊娠早期显示出显著的宏观和微观差异化,表明早发育. 这项研究详细介绍了这种猎物物种尿道系统的形态进展.
科学领域:
- 兽医解剖学 兽医解剖学
- 发展生物学 发展生物学
- 比较形态学的比较形态学
背景情况:
- 昆尼库卢斯·帕卡面临着严重的掠食,使得生殖动态对物种生存至关重要.
- 有限的文献存在于Cuniculus paca.的发育生物学上.
- 了解胎儿发育有助于评估物种弹性.
研究的目的:
- 描述Cuniculus paca.中的尿路的胎儿发育.
- 分析关键妊娠期期间的形态变化.
- 为了提供关于Cuniculus paca.的早期发育的见解.
主要方法:
- 对十二个Cuniculus paca胎儿标本进行了形态分析.
- 标本根据估计的妊娠年龄 (75157天) 分为三组.
- 尿道的宏观和显微镜检查.
主要成果:
- 泌尿道表现出盆腔-腹部的地形与宏观的器官分化存在从早期的胎儿阶段.
- 尿路的微观结构图案显示,在研究的胎儿年龄之间,发生的变化很小.
- 脏皮层的发育包括质体,带刷边缘的状管道和早期的质体器官形成.
结论:
- 这些发现支持昆尼库勒斯 (Cuniculus paca.) 的早期发育.
- 尿路的早期分化表明,在出生后不久就有功能准备.
- 这项研究为Cuniculus paca发育生物学提供了基础知识.
相关概念视频
Development of the Sexual Organs in the Embryo and Fetus
640
Development of the reproductive organs in an embryo starts from a bipotential state. This means the early embryo can develop either male or female reproductive organs. The formation of these organs begins with the growth of gonadal ridges that arise from the intermediate mesoderm during the fifth week of development.
Near the gonadal ridges, two duct systems are present: the mesonephric ducts (Wolffian ducts) and paramesonephric ducts (Müllerian ducts). These ducts form the basis for the...
Near the gonadal ridges, two duct systems are present: the mesonephric ducts (Wolffian ducts) and paramesonephric ducts (Müllerian ducts). These ducts form the basis for the...
640
Ureters
439
The ureters are retroperitoneal tubes located on either side of the vertebral column. They are responsible for transporting urine from each kidney to the urinary bladder. These tubes have thick walls and are approximately 25-30 cm long. Their diameter is around 10 mm at the renal pelvis, gradually narrowing to 1 mm as the ureter obliquely enters the posterior bladder wall through the ureteric orifices. The shape of these orifices is slit-like, which helps to prevent urine backflow toward the...
439


