![Mesonephros and Gonadal Vascularization. Illustration of the posterior body wall of a human embryo at the end of the fourth gestational week. The large mesonephroi occupy much of the coelomic cavity. The indifferent-stage gonads are located on their medial surfaces. The mesonephroi receive blood from the lateral segmental arteries; the gonads are supplied by a distal branch of the lateral segmental arteries. Note the mesonephric vascular plexus that interconnects adjacent intersegmental arteries at the boundary between the mesonephros and its adjacent gonad as well as the prominent, laterally placed mesonephric duct that runs parallel to the body axis. At this time in gestation, the mesonephroi are beginning to degenerate (denoted by the mottled appearance), as are the portions of the arteries that supply them. Neither the superior lateral segmental artery that supplies the mesonephros nor the mesonephric duct deteriorates. | Vascular Ontogeny within Selected Thoracoabdominal Organs and the Limbs - Scientific Figure on ResearchGate. Available from: https://www.researchgate.net/figure/Primordium-of-Gut-Tube-Stages-in-the-formation-of-the-gut-tube-are-illustrated-As_fig5_309620633 [accessed 30 Jul, 2022]](https://s3-us-west-2.amazonaws.com/secure.notion-static.com/897fd83d-d18c-40a3-b7cc-50a619ffc237/Untitled.png)
https://www.youtube.com/watch?v=eKuO_526YCc
Mesonephros and Gonadal Vascularization. Illustration of the posterior body wall of a human embryo at the end of the fourth gestational week. The large mesonephroi occupy much of the coelomic cavity. The indifferent-stage gonads are located on their medial surfaces. The mesonephroi receive blood from the lateral segmental arteries; the gonads are supplied by a distal branch of the lateral segmental arteries. Note the mesonephric vascular plexus that interconnects adjacent intersegmental arteries at the boundary between the mesonephros and its adjacent gonad as well as the prominent, laterally placed mesonephric duct that runs parallel to the body axis. At this time in gestation, the mesonephroi are beginning to degenerate (denoted by the mottled appearance), as are the portions of the arteries that supply them. Neither the superior lateral segmental artery that supplies the mesonephros nor the mesonephric duct deteriorates. | Vascular Ontogeny within Selected Thoracoabdominal Organs and the Limbs - Scientific Figure on ResearchGate. Available from: https://www.researchgate.net/figure/Primordium-of-Gut-Tube-Stages-in-the-formation-of-the-gut-tube-are-illustrated-As_fig5_309620633 [accessed 30 Jul, 2022]