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...l the cytoplasm is divided into two giving nse to a two cell st ige of the embryo or ovum (Fig 28B and C) Each of the daughter cells contains an equal number ...stage stage F —eight cell stage ( \fter Lev is and Hartman 1933 ) of tf e Carnegie Institution of Washington y c *00

...logue.jpg|200px|alt=Orts Llorca Madrid embryo catalogue|Orts Llorca Madrid embryo catalogue|left]] ...ble us to draw the following conclusions. The truncus appears in the human embryo, between Stages XII and XIII, as a portion of the aortic sac which invagina

...1876. The ova and ovary in man and other mammalia. Quar. J. Micr. Sc. 16, 190. Fuss, A. 1911. Uber extraregioniaire Geschlechtzellen bei einem Menschhchen Embryo von vier wochen. Anat. Am. 39, 407.

...e, in which it opened in the naso-pharynx. In the development of the human embryo we see these three stages reproduced.<ref> See Professor J. E. Frazer, Lanc ...rmation of the Face by the Nasal, Maxillary and Mandibular Processes in an Embryo of the 6th week]]

...Washington, D. C. Published By The Carnegie Institution Of Washington 1915 Carnegie Institution Of Washington Publication No. 223 Press Of Gibson Brothers Wash ...s and their relation to the development of the vena cava and azygos in the embryo pig=

During this time, the allantois has grown out from the embryo into the exocoel and has extended around the amnion. The outer wall of the ...tched, thus reducing the thickness in that part of the uterus in which the embryo is located. The longitudinal muscle is now 0.4 to 0.5 mm thick and the circ

...oker from the Penrose Fund of the American Philosophical Society, from the Carnegie Corporation of New York, and from the University of Pittsburgh. ...lar components in the thoracic portion of the spinal cord of a 55-cm. calf embryo. He corroborated the findings of Ramon y Cajal in general but declared tha

...storic 1922 paper by Doan is a description of the development of the human embryo bone marrow. :'''Links:''' [[Book_-_Contributions_to_Embryology|Carnegie Institution of Washington - Contributions to Embryology]]

| [[File:Mark_Hill.jpg|90px|left]] Possibly [[Carnegie stage 6]]. See an additional description of the Herzog embryo in {{Ref-Lewis1917}}

...as stopped before eggs were retrieved, or in the case of frozen [[E#embryo|embryo]] cycles, before embryos were transferred. ...negie stage 10-23.jpg|thumb|150px|alt=Carnegie stages|link=Carnegie Stages|Carnegie stages]]

...human embryos in detail ([[:Category:Teacher-Bryce Embryo 2|Teacher-Bryce Embryo 2]]) and compares these two with the other known (named) human embryos of t =IV. The Development of the Vascular System in the Human Embryo prior to the Establishment of the Heart=

...tion, constructed from sections, of part of the spinal cord of 55 mm. pig embryo showing neuroglial support for developing neuron cells. (Redrawn from Harde ...tellate neuroglia cells or astrocytes. (J) Transverse section of 9 mm. pig embryo portraying ependymal, mantle, and marginal layers, external and internal li

...after the 60 mm embryo stage|Plate 13. Placental structure after the 60 mm embryo stage.]] The numerous contributions from the Carnegie Laboratory of Embryology on implantation of the blastocyst and on placental

...[[Carnegie stage 22|Streeter’s Horizon XXII]]), and EH 377, 31.5 mm C-R ([[Carnegie stage 23|Streeter’s Horizon XXIII]]). Both of these embryos had been cut '''Fig. 1''' Ventrocephalic aspect of heart of 31.5 mm embryo showing the superficial cardiac vessels. The arch of the aorta has been rep

...[[Carnegie stage 22|Streeter’s Horizon XXII]]), and EH 377, 31.5 mm C-R ([[Carnegie stage 23|Streeter’s Horizon XXIII]]). Both of these embryos had been cut '''Fig. 1''' Ventrocephalic aspect of heart of 31.5 mm embryo showing the superficial cardiac vessels. The arch of the aorta has been rep

...e, it was nevertheless apparent that a venous injection of the body of the embryo was often produced, and the impression was gained that a communication exis ...om the mouth, reaching it by way of the Eustachian tube. Using, in the pig embryo, the heart as the mechanism for injecting the ink, extravasation from the c

| These are links to other normal Carnegie Collection numbered embryos available on this educational site. {{Carnegie numbered embryo links}}

Carnegie Institution of Washington ...n of data was made by the statistical staff of the Department of Genetics, Carnegie Institution of Washington (Cold Spring Harbor, Long Island), and by Mr. Wil

...evident as a protuberance (see His-Ziegler model of brain of 13.6mm human embryo). As the brain enlarges, the pallium envelops the basal ganglia and the tha ...on speech and a reprint of some of the more important papers. Brain, 38: 1-190,

Department of Embryology, Carnegie Institution of Washington, Baltimore, Maryland ...ovulationem, leaving only five and one-half days‘ actual development of the embryo to birth. The rate of development is compared with Eutherian mammals.

...both the method of injection and that of direct observation of the living embryo in the same stage. ...h the growih of the entire wall of a vessel by cell-division in the living embryo and the formation of new vessels from the walls of old vessels; so that the

Washington, D. C. Published by the Carnegie Institution of Washington Carnegie Institution Of Washington, Publication No. 142

WASHINGTON, D. C. Published by the Carnegie Institution of Washington 1911 Carnegie Institution of Washington, Publication No. 142

...h he believed was the essential element in that it contained the preformed embryo in an intangible way. That is, the sperm animalcule of the ram contains a l ...rged capsule is soon formed which assumes the size and shape of the future embryo at the time of hatching (fig. 123). (See Tavolga, '50.) In the brook lampre

the embryo of the mouse and rabbit is lower embryo, until the sprouting of the primary

embryo without the cooperation of the female, and whether the result is male enlarged compartment where the egg or developing embryo may be retained.

embryo (Heuser and Streeter, 1941 ; Hertig embryo extract prepared from 19- to 20day-old guinea pig embryos (Blandau and

the development of the embryo. and W. C. Young, Am. J. Physiol., 190, 425, 1957.)

From the Department of Embryology, Carnegie Institution of Washington, Baltimore, Maryland ...ation of the cavities in the cartilaginous capsule of the ear in the human embryo. Amer. Jour. Anat., vol. 22.

...f the Scala tympani, Scala vestibuli and perioticular cistern in the human embryo. Nine figures 299 Embryo 12.84

...that described for other hemopoietic organs, e.g., yolk-sac of 10-mm. pig embryo, 5 yolk-sac of mongoose embryos, 6 and red bone-marrow. 7 ...of mesenchymal 'angioblasts' in the living blastoderm of the two-day chick embryo grown in Locke's solution, by which the blood-vessel lumen forms. But these

...ATION OF THE CAVITIES IN THE CARTILAGINOUS CAPSULE OF THE EAR IN THE HUMAN EMBRYO== Department of Embryology, Carnegie Institution of Washington, Baltimore,

-190 ...IC SAC AND ITS TOPOGRAPHICAL RELATION TO THE TRANSVERSE SINUS IN THE HUMAN EMBRYO

...) stated that there are present in the developing islet cells of the sheep embryo minute safranophile granules. These have since been observed by Laguesse (' Pankreas beim nienschlichen Embryo. Arch, mikros. Anat., Bd. 64. Kyrle, J. 1908 Ueber die Regenerationsvorgang

...p. 1391. Corner, G. W. 1915 Corpus luteum of pregnancy as it is in swine. Carnegie ...ctomjr in relation to the secondary sex characters of some domestic birds. Carnegie Inst. Washington, 243. Hegar, K. 1910 Studien zur Histogenese des Corpus lu

...ent peculiarly favorable m.aterials for studies of this character, for the embryo becomes functional at a very early stage of differentiation, in this respec ...m of response to any sort of excitation applied to the trunk region of the embryo, viz., a swim,ming reaction, and the same neurones are involved throughout

...presents the direction of the first outgrowth of the cochlear pouch of the embryo. As shown by Streeter ('07) for the human, this first growth of the cochlea 190.0

C. W. M. PoYXTER. Some observations on wound healing in the early embryo. Twelve figures ...nd Atterbury. Bursa and tonsilla pharyngea; a note on the relations in the embryo calf. Eight figures 251

...erning certain cytological characteristics of the erythroblasts in the pig embryo and the origin of non-nucleated erythrocytes by a process of cytoplasmic co ==The Development Of The Rectum In The Human Embryo==

University of Cincinnati Carnegie Institution Ruth Stocking Lynch. The cultivation in vitro of liver cells from the chick embryo. Twenty-five figures 281

are comparatively numerous in the embryo, and in the adult the resting A, From a 7 mm. embryo; B, from one of 26 mm.; ch,

Embryo: nine to fourteen days’ incubation 12 ...nd. The realiza- tion of the expectation of finding cortical tissue in the embryo- logical stages of the right ovary was previously anticipated by Willier (

Aided by the Carnegie Institution. ...us structures in the wall of the cerebral vesicle and neural tube of a cat embryo undoubtedly relate to mitochondria.

A. In a salmon embryo after Furst. The position of the cell body. They share in its trophic functions, as is nerve of an embryo of

190/ ...idently would have shown less conformity if they had been obser\^ed in the embryo stage. (JSTewmann's Fig, 38.)

190 190.0

...ennent have made experiments in which the paternal influence in the hybrid embryo was diminished. Tennent states that in the cross between Hipponoe and Toxop ' Tennent, Publication 132, Carnegie Institution, 1910.

arrow indicates the direction of the axis of the future embryo, b, bristle. ...de of the blastoderm is away from the observer, and the axis of the future embryo is ill a diagonal position, as indicated in Fig. 1. These fig-ures (A of th

...probably for the carotids." Thus the evi ' See the figures of the skull in embryo marsupials, edentates, insectivores, etc., as figured by Broom, Parker and ...n so far as they lie between the pterygoids and the quadrates. Likewise in embryo mammals the cartilaginous alae temporalis are interpreted by Broom ('09) as

190.6 (182.6-198.5) ...e also points out that the systemic lymphatic development in the mammalian embryo is "by no means confined to the immediate environment of degenerating embry