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Mesonephros information


Mesonephros
Reconstruction of a human embryo of 17 mm. (Label for Mesonephros is at center right.)
Details
Carnegie stage14
Days22
PrecursorIntermediate mesoderm
Identifiers
Latinmesonephros
MeSHD008650
TEE5.6.2.0.0.0.1
FMA72171
Anatomical terminology
[edit on Wikidata]

The mesonephros (Greek: middle kidney) is one of three excretory organs that develop in vertebrates. It serves as the main excretory organ of aquatic vertebrates and as a temporary kidney in reptiles, birds, and mammals. The mesonephros is included in the Wolffian body after Caspar Friedrich Wolff who described it in 1759. (The Wolffian body is composed of: mesonephros + paramesonephrotic blastema)

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Mesonephros

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The mesonephros is included in the Wolffian body after Caspar Friedrich Wolff who described it in 1759. (The Wolffian body is composed of: mesonephros +...

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Development of the urinary system

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to form a glomerulus. The tubules collectively constitute the mesonephros. The mesonephros persists and form the permanent kidneys in fish and amphibians...

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Genitourinary system

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These embryonic structures are on either side: the pronephros, the mesonephros and the metanephros of the kidney, and the Wolffian and Müllerian ducts...

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Intermediate mesoderm

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system, named pronephros, mesonephros and metanephros respectively (anamniote embryos form only a pronephros and mesonephros). The intermediate mesoderm...

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Kidney development

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development of a more advanced kidney: the archinephros, pronephros, mesonephros, and metanephros. The pronephros is the most immature form of kidney...

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Human embryonic development

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different kidney systems form in the developing embryo: the pronephros, the mesonephros and the metanephros. Only the metanephros develops into the permanent...

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Development of the gonads

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the mesonephros and gonadal ridge are continuous, but as the embryo grows the gonadal ridge gradually becomes pinched off from the mesonephros. However...

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Mesovarium

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mesovarium; rather, it is covered by germinal epithelium. At first, the mesonephros and genital ridge are suspended by a common mesentery, but as the embryo...

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Caspar Friedrich Wolff

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anatomy, and botany. He was the discoverer of the primitive kidneys (mesonephros), or "Wolffian bodies" and its excretory ducts. He described these in...

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Mesonephric duct

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urogenital system. The mesonephric duct connects the primitive kidney, the mesonephros, to the cloaca. It also serves as the primordium for male urogenital...

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Pronephros

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It is succeeded by the mesonephros, which in fish and amphibians remains as the adult kidney. In amniotes, the mesonephros is the embryonic kidney and...

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Hematopoietic stem cell

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wall of the embryonic aorta within the (midgestational) aorta-gonad-mesonephros region, through a process known as endothelial-to-hematopoietic transition...

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Kidney

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vertebrates, the mesonephros persists into the adult, albeit usually fused with the more advanced metanephros; only in amniotes is the mesonephros restricted...

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Development of the reproductive system

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diverticulum from its hinder end. A large part of the head end of the mesonephros atrophies and disappears; of the remainder the anterior tubules form...

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Mesorchium

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peritoneum, and each is attached by a peritoneal fold, the mesorchium, to the mesonephros. mesentery mesovarium Mesorchium is the fibrous sheath which attaches...

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Opisthonephros

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tissue from which in amniotes both mesonephros and metanephros come.” Some accounts call opisthonephros the ‘mesonephros’, but the opisthonephros in anamniotes...

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Suspensory ligament of ovary

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as the 'broad ligament'. The suspensory ligament originates from the mesonephros, which, in turn, originates from intermediate mesoderm. The prenatal...

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Male reproductive system

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not seen initially. Maturation continues as the medial aspect of each mesonephros grows to form the genital ridge. The genital ridge continues to grow...

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Germ cell

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that causes differentiation of primordial germ cells. In males, the mesonephros releases retinoic acid. RA then goes to the gonad causing an enzyme called...

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Endocrine system

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of the intermediate mesoderm. At five to six weeks of gestation, the mesonephros differentiates into a tissue known as the genital ridge. The genital...

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Epididymis

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the embryo, the epididymis develops from tissue that once formed the mesonephros, a primitive kidney found in many aquatic vertebrates. Persistence of...

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AGM

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glass mat, a technology used in some models of VRLA battery Aorta-gonad-mesonephros, a part of chicken, mouse, and human embryos Arithmetic–geometric mean...

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Paramesonephric duct

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a region of mesenchyme arising from, and running parallel with, the mesonephros. The paramesonephric ducts are formed by the craniocaudal invagination...

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Meiosis

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studies suggest that retinoic acid derived from the primitive kidney (mesonephros) stimulates meiosis in embryonic ovarian oogonia and that tissues of...

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Granulosa cell

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Upadhyay S, Zamboni L (1982). "Preliminary observations on the role of the mesonephros in the development of the adrenal cortex". Anat Rec. 202 (1): 105–111...

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