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...ric 1955 paper by Mckay and co-authors describes human [[Carnegie stage 14|Carnegie horizon (stage) 14]] embryos. Currently only a brief abstract is included o '''Modern Pages:''' [[Carnegie stage 14]] | [[Week 5]] | [[Embryology History - Arthur Hertig|Arthur Herti

...This 1908 paper describes an early human embryo (Pfannenstiel III) about [[Carnegie stage 11]] occurring in [[week 4]]. From the Collection of Prof. Pfannensti ...omites]] | [[Book_-_Contributions_to_Embryology_Carnegie_Institution_No.72|Carnegie Institution No.72 Description of a human embryo having twenty paired somite

[[Carnegie stage 5]] * Approximately 0.1-0.2 mm

...uptured chorion previously mentioned and overlying decidua capsularis (fig. 1). In determining the diameter of the vesicle in a plane perpendicular to th '''Fig.1''' A section near the center of the implanted ovum. The enlargement of the

...ibes an early anencephalic embryo. Limb development and CRL suggest week 8 Carnegie stage {{CS23}} or an early week 9-10 {{fetal}} stage. The embryo was first photographed (figs. 1 and 2), and then cut into transverse

...ody wall during human development. A 13 mm {{CRL}} embryo corresponds to [[Carnegie stage 18]] in [[Week 7]]. Note that {{CRL}} measurements in embryos are aff ...pothesis. Furthermore, as regards the source of the blood cells during the stages of hepatic hematopoiesis, these two investigators disagree. Maximow derives

...ibes gastrointestinal tract smooth muscle development using a number of [[Carnegie Collection]] embryos. {{Carnegie Collection fetal table}}

...essed, but the surface was irregular and sagged due to squeezing. In older stages the plate was thickened and buds of cells projected ventrally. At a later s Mall (20) in a description of a two week old human embryo measuring 2.1 mm, stated that the liver bud was well marked, encircling and invading the

...transverse section week 8|Spinal cord transverse section<br>Embryo week 8 (Carnegie Stage {{CS22}})]] [[File:Stage13 face ventral view01.jpg|thumb|Human embryo (Carnegie stage 13) spinal cord (shown in cross-section at the bottom of image).]]

[[Carnegie stage 18]] ...onad; the paramesonephric duct grows rapidly down through the mesonephros; 1–3 semicircular ducts are present in the internal ear.

...vations reported here show that although blood cell formation in its early stages in the human embryo and especially the yolk sac follows the same general li ...first evidences of hematopoiesis are to be found in early primitive streak stages. With the appearance of "the head process, hematopoiesis is definitely esta

...eiler Stages''' divides mouse development into 26 prenatal and 2 postnatal stages.<ref name="The House Mouse">{{Ref-Theiler1972}}</ref> '''Downs and Davies Stages''' is a more recent (1993) staging of gastrulating mouse embryos by morphol

...ric 1955 paper by Mckay and co-authors describes human [[Carnegie stage 13|Carnegie horizon (stage) 13]] embryos. Currently only a brief abstract is included o '''Links:''' [[Carnegie stage 13]] | [[Week 5]] | [[Embryology History - Arthur Hertig|Arthur Herti

[[Carnegie stage 6]] ...ins to expand greatly toward the end of stage 5 and during stage 6 (fig. 6-1). The secondary umbilical vesicle develops.

...eems to be the result of the interaction of three developmental processes: 1) the persisting adherence of the surface ectoderm to the neural tube over a ...It is further supported by the evidence presented in this paper concerning 1) the origin of the neuro—ectodermal adherence and its role in normalihypo

{{Carnegie stage 7 links}} =The Chorion and Endometrium of the Embryo H.R.1=

Published by the Carnegie Institution of Washington Washington, 1920 ...can be constructed or the normal range of its variations in the different stages of development can be determined, more abundant and better data are necessa

...the [[Harvard Collection|Harvard Embryological Collection (H.E.C.)]] and [[Carnegie Collection]]. ...rat, 4.4 to 24.8 mm.; one of the bat, 13.4 mm.; twenty—three of the pig, 3.1 to 48 mm.; three of the calf, 14.2 to 25.2 mm.; seventeen of the sheep, 2.8

...Carnegie stages, use the embryo CRL to approximately convert to [[Carnegie Stages]]. ...bryology_15|Historic - Urogenital Development]] | [[Carnegie Embryos]] | [[Carnegie Collection]]

...damental questions involved in the development of the vascular system are (1) What is the origin of the blood-vessels in the body of the embryo? (2) Wha ...t divides it forms syncytial masses, which have two essential properties: (1) the power of liquefying in the center, with the formation of plasma and ve