Renal System - Carnegie Stage 13: Difference between revisions
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==Stage 13 Annotated== | ==Stage 13 Annotated== | ||
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| [[File:Stage 13 image 097.jpg| | | [[File:Stage 13 image 097.jpg|160px]] | ||
| [[File:Stage 13 image 098.jpg| | | [[File:Stage 13 image 098.jpg|160px]] | ||
| Cranial and caudal extent of mesonephros (the mesonephros is never so well-developed in equivalent human embryos). Youngest mesonephric tubules at caudal end. Mesonephric duct in G7. | | Cranial and caudal extent of mesonephros (the mesonephros is never so well-developed in equivalent human embryos). Youngest mesonephric tubules at caudal end. Mesonephric duct in G7. | ||
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| [[File:Stage 13 image 077.jpg| | | [[File:Stage 13 image 077.jpg|160px]] | ||
| [[File:Stage 13 image 078.jpg| | | [[File:Stage 13 image 078.jpg|160px]] | ||
| Glomeruli. In E1, note form of urogenital ridge and urogenital "mesentery". | | Glomeruli. In E1, note form of urogenital ridge and urogenital "mesentery". | ||
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| [[File:Stage 13 image 081.jpg| | | [[File:Stage 13 image 081.jpg|160px]] | ||
| [[File:Stage 13 image 082.jpg| | | [[File:Stage 13 image 082.jpg|160px]] | ||
| E4 Afferent glomerular arteriole from dorsal aorta. In urogenital ridge, note medial location of glomeruli and lateral location of convoluted tubules and mesonephric duct. | | E4 Afferent glomerular arteriole from dorsal aorta. In urogenital ridge, note medial location of glomeruli and lateral location of convoluted tubules and mesonephric duct. | ||
Mesonephric duct. Dark mass of mesenchyme (medial) is the metanephrogenic cap = precursor of the definitive kidney. Note lateral extensions of urogenital sinus - the terminal | Mesonephric duct. Dark mass of mesenchyme (medial) is the metanephrogenic cap = precursor of the definitive kidney. Note lateral extensions of urogenital sinus - the terminal | ||
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==Stage 13== | ==Stage 13== |
Revision as of 12:57, 21 September 2010
Introduction
Movies - Embryo Carnegie stage 13 - This embryo animation rotates and show the relative position of internal renal system structures at about the middle of embryonic development. Compare these with the later stage 22 embryo.
The movie is based upon reconstruction of serial slice images. | |
Renal and Gastrointestinal |
Stage 13 Annotated
Cranial and caudal extent of mesonephros (the mesonephros is never so well-developed in equivalent human embryos). Youngest mesonephric tubules at caudal end. Mesonephric duct in G7. | ||
G6L | G7L | |
Glomeruli. In E1, note form of urogenital ridge and urogenital "mesentery".
In the urogenital ridge, identify the subcardinal vein and the mesonephric (Wolffian) duct. Dorsal aortae fuse. | ||
D7L | E1L | |
E4 Afferent glomerular arteriole from dorsal aorta. In urogenital ridge, note medial location of glomeruli and lateral location of convoluted tubules and mesonephric duct.
Mesonephric duct. Dark mass of mesenchyme (medial) is the metanephrogenic cap = precursor of the definitive kidney. Note lateral extensions of urogenital sinus - the terminal mesonephric ducts. The two crests between the rectum and each mesonephric duct are still the lateral extensions of the urorectal septum. Near caudal limit of intraembryonic coleom. Umbilical artery sweeps lateral to the coelom, which in turn, lies lateral to the mesonephric duct. E5-F4: Note further lateral displacement of mesonephric duct in urogenital ridge. Note medial thickening of coelomic epithelium of the UG ridge (gonad precursor - prominent in F2). | ||
E4L | E5L |
Stage 13
E1L | E2L | E3L | E4L | E5L | E6L | E7L |
F1L | F2L | F3L | F4L | F5L | F6L | F7L |
G1L | G2L | G3L | G4L | G5L | G6L | G7L |
Glossary Links
- Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link
Cite this page: Hill, M.A. (2024, April 26) Embryology Renal System - Carnegie Stage 13. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Renal_System_-_Carnegie_Stage_13
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G