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...e title below to open pages with more about information about that animals embryo development and additional pages that relate to that species. There is also [[Bat_Development|Bat Development]] - Not a typical embryo used in developmental studies, but first alphabetically and an alternative

...hilly 1987|link=Embryology History - Ronan O'Rahilly|Ronan O'Rahilly (1987 Carnegie Labs)]] ...t study,<ref name=Weller1933>{{Ref-Weller1933}}</ref> used the following [[Carnegie Collection]] embryos: stage {{CS9}} (No. {{CE1878}}), {{CS10}} ({{CE391}};

...0 series and 12 dissected tonsillar regions from the [[Carnegie Collection|Carnegie Institution, Department of Embryology]], and 50 series and 19 dissected ton ...tance. I also wish to acknowledge the generous help of Dr. G. L. Streeter, Carnegie Institution of Embryology, in placing at my disposal abundant material.

...later (Giacomini, 1893), when considering chorionic vesicles devoid of an embryo, which had evidently undergone hydatiform degeneration, again spoke of the Johnson (1917) found the villi on a chorionic vesicle, containing an embryo with 24 somites, variable in size and 1.1 to 1.3 mm. long in the region of

...m in co-culture experiments, we find that in the context of the developing embryo, the dorsal aortae as well as the paraxial, intermediate, and lateral mesod ** ventral bud later ([[Carnegie stage 13|stage 13]] - [[Carnegie stage 14|stage 14]])

...n most convenient, and probably most nearly correct, to rate the age of an embryo and the duration of pregnancy from the last menstrual period. However, from ...statistics of Issmer the average duration of pregnancy, in 1220 cases, is 280 days when estimated from the first day of the last menstrual period, and, i

...e 19|stage 19]]; {{CE1584}} [[Carnegie stage 19|stage 19]]; {{CE1535}} [[Carnegie stage 23|stage 23]]. '''Modern Notes:''' {{embryonic}} | {{CRL}} | [[Carnegie Collection]]

...describes the development of the human sympathetic nervous system using [[Carnegie Collection]] embryos: {{CE460}}. ...cated, were made on human embryos included in the [[Carnegie Collection|'''Carnegie Embryological Collection''']]. It is a real pleasure to express my indebted

...ioned and stained. Of the embryos and fetuses studied, 152 belonged to the Carnegie Institution Department of Embryology. The remaining specimens were from the ...s to Dr. G. L. Streeter for the use of the Embryo1ogical Collection of the Carnegie Institution and supplying figures 15, 16, and 17. I also wish to thank Pro

...ely a quotation from George Catlin, The North American Indians, vol. 1 (p. 280 in the Edinburgh reprint of 1926). Catlin's rather discreet painting of suc ...get the eggs fertilized; and third, the uterus is prepared to receive the embryo, by action of the corpus luteum, which is formed and thrown into action at

...10) the right side of the neck and thorax was cut in sagittal sections. In embryo (9) and the six foetuses the neck and upper part of the thorax were cut in (10) Embryo, 9th-10th week, no measurement recorded, sagittal sections at 15 9, of righ

...y Atlas of the 13-mm. Pig Embryo. (Prefaced by younger stages of the chick embryo.) The Wistar Institute Press, Philadelphia, iv & 104 pp. Corner, G. W., 1915. The corpus luteum of pregnancy as it is in swine. Carnegie Inst., Contrib. to E-mbryoL, Vol. 2, pp. 69-94.

...e free to use our judgment in methods of fixation and preservation. If the embryo is perfectly fresh or possibly living, we use, of course, the most refined ...straight and other measurements and weights also are taken. The age of the embryo is estimated on the basis of weight, crown-rump, and foot length, and the e

{{Carnegie stage 7 links}} ...soderm of the stalk in very young human embryos; in the description of the embryo OP (1921) he describes a "Zerfallende Epithelwucherung des Amnions" (1921,

...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

...etic ganglia. We have verified this for the sow in a dissection of a large embryo prepared in formalin. However, the important work of Gaskell, Langley and D ...: Cyclic changes in the ovaries and uterus of the sow. Publications of the Carnegie Institution, No. 276 (Contributions to Embryology, No. 64).

ribs in a 30-mm. CR embryo, for some cervical and upper and of the tympanic annulus of a 42—mm. CR embryo by Mall

...ed follicle, but which have usually completely disappeared by the time the embryo begins to implant in the uterus In some species true luteal cells are added ...icle sumulat ng (gimctogcmc) hormones of pituitarv gland 7 tli I Cfiem 133 280-290

...of tissues in organisms, as it consists of cells from several parts of the embryo including the head ectoderm, neural ectoderm and mesoderm. From its many or When Aristotle described the embryo of a ten day old chicken, he wrote "The eyes about this time, if taken out,

...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

* The yolk particles offer nourishment of the developing embryo. The process of frog development will be discussed from the phases of gamet ...rresponds in line of direction to the longitudinal axis of the body of the embryo of the frog species.

...ranes and appendages, and the establishment of those relations between the embryo and the maternal organism which are such fundamental characteristics of the ..., pig about four months, cow about nine months, man about nine months (270-280 days), deer ten months, horse about eleven months, elephant about twenty mo

Hull Laboratory Of Anatomy, University Of Chicago, And The Carnegie Institution Of Washington, Laboratory Of Ernbryolagy, Baltimore ...which appeared in the medial wall of the cerebral hemispheres of the human embryo between the second and the fourth months was under debate from 1868 to 1904

...viously primitive character was seen in the thoracic cord of a 5—mm. human embryo, it seemed worth While to examine the suitable younger specimens available ...by grants from the Penrose Fund of the American Philosophical Society, the Carnegie Corporation of New York and the University of Pittsburgh.

...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 ...19 F13 182 204 Fu4 197 29 F15 210 23 F16 220 24 F17 246 27 F18 268 294 F19 280 314 F20 40

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

structural relationships between the developing embryo and the uterus. These comprise a succession of stages of placental metabolic demands of the developing embryo and fetus.

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

Koelliker (’7 9) has noted in a rabbit embryo of eleven days a close relation between the anterior end of the notochord a caudal surface of Rathke’s pouch. In a 4.5-mm. embryo he saw

278-280 days-^ 280 ± 9.2 days

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

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

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

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,

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.

...empt was made to destroy just enough tissue along the dorsal aspect of the embryo to insure complete elimination of the neural-crest material and leave the v ...rophotographically in figures 1 and 2, which are taken from sections of an embryo of the chick (14) ^ which was subjected to operation at the close of the se

:Termination by resorption of the ovum, 34 — Death of the embryo with the formation of tubal mole, 34 — Tubal abortion, 34 — Rupture of ...ctopic pregnancy, 84 — Diagnosis of ectopic pregnancy, 85— The fate of the embryo in ectopic pregnancy, 87.

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

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

Staff Member, Department of Embryology, Carnegie Institution Of Washington. Baltimore. Maryland the guinea pig and up to 280 feet in the

...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

Mabel Bishop. The nervous system of a two-headed pig embryo. Twenty figures 379 Hamilton, D. J. 1885-1886 On the corpus callosum in the embryo. Brain, vol. 8.

...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 and the acoustic and facial nerves in the human embryo. Am. Jour.

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.

Translation by Joat V Nonidu Carnegie Institution Wuhington Translation by Jos6 P. Nonidez Carnegie Institution of Washington

...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.

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

...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==

Translation by Jos6 F. Nonidez Carnegie Institution of Washington 8 1917 The microscopic structure of striped muscle in Limulus. Pub. 251, Carnegie Institution of Washington, pp. 273-290.

280.0 Carnegie Institution of Washington

...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

-280 ...IC SAC AND ITS TOPOGRAPHICAL RELATION TO THE TRANSVERSE SINUS IN THE HUMAN EMBRYO

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

University of Cincinnati Carnegie Institution WARREN H. LEWIS Carnegie Laboratory oj Embryology, Johns Hopkins Medical School

12. Osborne, T. B., and Mendel, L. B.: Publications of the Carnegie Institution of Washington, 1911, Bull. No. 156. ...lsulphonephthalein) and Colloids {Trypan Blue) Injected into the Mammalian Embryo. By George B. Wisiocki

The youngest embryo in which any of the air-sacs appear as In the same embryo may be seen the first indication of the

Fig. 1. Cephalic veins of a late embryo of Tropidonotus natrix, head 7.5 mm. long. X 24. After Grosser and Brezina, ...the jaw and runs dorsad on the lateral aspect of the pterygoid bone. In an embryo Lacerta Avith head 5.2 mm. long this vein is connected with the vena mandib

...r H. Slifer, Insect development. If. Mitotic activity in the grassliopjier embryo. Two figures 013 ...trient organs, or pseudoplacenta, until shortly before birth. At birth the embryo is a little more than one-third the adult body length and bears strongly de

...e take place, as is shown in the caudal end of the Wolffian body of a deer embryo of 6.4 mm. (fig. 3), where the increased growth of one limb of the transver ...uricular canal, and the adult relations reproduce essentially those of the embryo. Hence their comihon histological characters in the adult and the intimate

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 (

...hem to enlarge and function. Again, that large venous network in the early embryo which is associated with the azygos vein and which later disappears may be ...pment of the lymphatics of the lungs of the embryo pig. Contrib. Embryol. (Carnegie Inst.), Wash., 1916, IV, 47.

a. Chromosomes in the embryo 3 a. Chromosomes in the embryo

...r regions of the body. The sweat glands first make their appearance in the embryo in these regions. These areas also lend themselves readily to an extensive Contributions to Embryologj-, Carnegie Institution of Washington,

...hyme cells is relatively low, as their origin from the basal region of the embryo might lead us to expect. This being the case, they are less affected by sli ...(Child, 16 c). According to Boveri ('01 a, '01 b) the apico-basal axis of embryo and larva coincides with the axis of the growing oocyte in Strongylocentrot

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

...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

...esearch rooms" at Woods Hole wishes to acknowledge his indebtedness to the Carnegie Institution for the opportunities thus presented for the carrying on of thi ...behavior and reactions during every stage of development from the time the embryo left the q^^ membranes till it attained the adult condition, in its behavio

...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 ...plexus. Most of the vessels composing the plexus lie longitudinally in the embryo along the line of the aorta and dorsal aortic roots, and out of this plexus

...er den Bau der Spinalganglienzellen bei einen viermonatlichen menschlichen Embryo. Arch. f. mikr. Anat., Bd. 59. 1901. ...ells through the following consistent explanation: while, in the course of embryo- logical development, the majority of ganglion cells become very much enlar

By Lewellys F. Barker, M. B. 1 volume of 280 pages. Price, in paper, $2.7^. STUDIES IN TYPHOID FEVER. By William Osler, By Lewellvs F. Barker, M. B. 1 volume of 280 pages. Price, in paper, |2."5. STUDIES IN TYPHOID FEVER. By William Osler,

Huntington. 191s. xli. 280-291. 1018, xl. 280-tlO.

...ples of the development of the systemic lymphatic vessels in the mammalian embryo 399 ...in E. Reinkb. Note on the presence of the fifth aortic arch in a 6 mm. pig embryo 453

P. E. Smith. The effect of hypophysectomy in the early embryo upon the growth and development of the frog. Ten figures 57 ...in to function, lymph begins to collect in the intercellular spaces of the embryo and, as we know, is subseciuently collected by a set of newly formed vessel

...idently would have shown less conformity if they had been obser\^ed in the embryo stage. (JSTewmann's Fig, 38.) ...commonly occurs to a greater or less extent during the development of the embryo. The sand was spriid^led with water as often as necessary. It was not neces

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

Sthrtevant, a. H. 1919 Inherited linkage variations in the second chromosome. Carnegie Inst., Wash;, publ. 278, pp. 305-341. Beckwith, C. J. 1908 The earH history of the egg and embryo of certain hyclroids. Biol. Bull., vol. 16, pp. 183-193.

Henry Denison. Note on Pathological Changes found in the Embryo Pig and its Membranes, with one figure 2.~3 ...sents a section taken through the anterior thoracic region of a 16 mm. cat embryo in which both azygos veins are of large

...s R. Stockard. The artificial production of eye abnormalities in the chick embryo. Two plates 33 ...uming a defect in the absorption of the primitive right aortic arch in the embryo. Absorption occurs ordinarih' distal to the point of origin of the right su

...the earliest neuro-muscular responses to tactile stimuli in the amphibian embryo. During the season of 1907 these experiments were continued upon embryos of ...with a most important phase of behavior, namely, its very beginning in the embryo. If, for instance, there is any such thing as a ^'simple reflex," such as S

...bryos were arranged accord- ing to measurement rather than age. The oldest embryo of the first series was 9.4 mm. in length, and the later series were select ...al cavity and in the pharynx, buds that resemble mature buds of the oldest embryo studied in all essential details except size. The later maturing of the tas

...e from each and consequently no defects except in size would appear in the embryo. Experiments on later stages, however, indicate absence of localization as ...ved and the remaining one will develop into a perfectly normal but smaller embryo. Morgan- succeeded in producing such embryos and I have also been able to d

...tion of the marsupial blastocyst with the trophoblast of the Eutheria, the embryo of the former, therefore, being without trophoblastic covering. ...on in similar conditions independently discovered by Patterson CIO) in the embryo of the Tatusia.

...and it is entirely possible that this region of the central cavity in the embryo was much more suggestive of the fourth ventricle. Judging from the adult al ...Tcr. and Dean that Polistotrema possesses well-developed ventricles in the embryo; the expansion being fully as great as in a similar stage of Petromyzon. As

food substances. Carnegie Institution of Washington, Publication ...ich was studied primarily by physicians to explain the growth of the human embryo, can likewise receive little attention in the medical school. These subject

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

...ems to be required for growth and development of the nervous tissue in the embryo. ...Institute for Medical Research. By cultivating in vitro parts of the chick embryo lens containing cells from the iris, a pure outgrowth of epithelial cells w

Fig. 23 Caudal end of a bo nun. Alustelus embryo. Note that the pores of canals of the head. In a 36 mm. embryo the lateral sensory

...A study on the depth of penetration of ultraviolet light-ray energy in the embryo of the tadpole 323 ...gland form accessory glands. According to Keibel and ]\Iall, in the female embryo few glands are formed, three being the maximum number. These may undergo de

==On The Development Of The Blood-Vessels Of The Brain In The Human Embryo== ...teries had been injected with Prussian blue, which, together with numerous embryo pigs injected alive or immediately after death, form the basis of this stud

...he brain in some species; in others, it enters the ventral surface. In the embryo it is primarily con- nected with the lamina terminalis. It is therefore cal Demonstration in the human embryo of a dorsal olfactory nerve in addition to the ventral well-known olfactory

...inophilies, the fixed mesenchymal cells may also give rise to them. In the embryo, hematopoietic mesenchyme is widely distributed. In the adult the bone-marr ..., with a bearing on the embryology of the lymphatic system. Wash.. 1915. — Carnegie Inst.. Wash.. Publ. No.