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1. Anterior-most section of nephric ridge; first to appear. 2. ... 4. Functional only in free-living larvae of bony fishes & amphibians. 5. Functional significance: pronephric duc...
www.ehd.org/classics/gasser_ch4.php
The pronephros represents the first appearance of the Urogenital System and is a ... At the level of somites 8 to 10 (C-4 to C-6) the cells form a pronephric ridge.
www.ncbi.nlm.nih.gov/pmc/articles/PMC1273608/pdf/janat0... www.ncbi.nlm.nih.gov/pmc/articles/PMC1273608/pdf/janat00475-0013.pdf
somites by Fraser, and called by her a 'pronephric ridge'. It will be referred to here simply as a 'nephric ridge' since its identity with pronephric structures is ...
www.ncbi.nlm.nih.gov/pubmed/2257968
In St 23-24 (Nieuwkoop and Faber, 1956) embryos, a ridge of cells forms caudal to the pronephric rudiment. The ridge lengthens at approximately the same rate ...
Development of the urinary and reproductive organs - Wikipedia, the ...
en.wikipedia.org/wiki/Development_of_the_urinary_and_re... en.wikipedia.org/wiki/Development_of_the_urinary_and_reproductive_organs
The pronephros disappears very early; the structural elements of the mesonephros mostly ... The gonadal ridge from which either the ovary or testis is formed.
www.ncbi.nlm.nih.gov/pmc/articles/PMC1262880/pdf/janat0... www.ncbi.nlm.nih.gov/pmc/articles/PMC1262880/pdf/janat00599-0026.pdf
Feb 4, 2010 ... The pronephric ridge extends from the 8th somite posteriorly. ... pronephric ridge is continued backwards for -03 mm. as a free cellular cord ...
vanat.cvm.umn.edu/TFFlectPDFs/LectEmbUrinarySys.pdf
(becomes urogenital ridge) lateral mesoderm: somatic splanchnic notochord coelom neural groove ectoderm endoderm. Nephrogenic Cord (left) pronephros ...
wps.aw.com/bc_martini_eap_3/0,7016,454704-,00.html
Three pairs of kidneys differentiate in successive periods along the cranial/ caudal axis of the urogenital ridge, beginning with the formation of the pronephros, ...
www.cellbio.emory.edu/courses/medi510/Lecture05.doc
a) Pronephros. Early in the 4th week several pairs of rudimentary pronephric tubules sprout from the cervical end of the urogenital ridge. The ends of these ...
www.ana.ed.ac.uk/database/humat/notes/embryo/urogenital... www.ana.ed.ac.uk/database/humat/notes/embryo/urogenital/urinary.htm
By the 10-somite stage, a continuous, solid, pronephric ridge has developed in the mesoderm at the level of the 8th and 9th somitic pairs and elevations in the ...
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