Each primitive aorta receives anteriorly a vein—the vitelline vein—from the yolk-sac and is prolonged backward on the lateral aspect of the notochord under the name of the dorsal aorta.
List of articles in "Anatomical Structure" category - Page 241
Vitelline veins
The vitelline veins are veins which drain blood from the yolk sac.
Gubernaculum testis
In the inguinal crest a peculiar structure the gubernaculum testis makes its appearance. This is at first a slender band extending from that part of the skin of the groin […]
Mesovarium
The mesovarium is the portion of the broad ligament of the uterus that suspends the ovaries. The ovary is not covered by the mesovarium rather it is covered by germinal […]
Pronephric duct
The pronephric duct is the predecessor of the Wolffian duct.
Appendix of testis
The appendix testis (or hydatid of Morgagni) is a vestigial remnant of the Müllerian duct present on the upper pole of the testis and attached to the tunica vaginalis. It […]
Tunica vaginalis
The tunica vaginalis is the serous covering of the testis. It is a pouch of serous membrane derived from the processus vaginalis of the peritoneum which in the fetus preceded […]
Gonadal ridge
In embryology the gonadal ridge (or genital ridge) is the precursor to the gonads. The gonadal ridge initially consists mainly of mesenchyme and cells of underlying mesonephric origin. Once oogonia […]
Cortical cords
In embryology cortical cords (also called secondary cords) are structures that develop from sex cords in the female. After further development they become the ovarian follicles.In the male they become […]
Gonadal cord
In animal embryology the gonadal cords or sex cords (or primitive sex cords) are structures that develop from the gonadal ridge. After sexual differentiation in males the sex cords become […]