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...indicate the absence of pouches. Weller (30) described a two somite human embryo which according to his description possessed the first pharyngeal pouch. Th Corner (4) described the foregut of a 10-somite human embryo, as being compressed dorso-ventrally with the anterior end immediately unde

[[Carnegie stage 17]] ...ecisely of the size of the chorionic sac than of the size of the contained embryo. If the manifestly abnormal chorions be omitted, none has a greatest diamet

...reaction of Bennett (1940) and the plasmal reaction as described by Lison (1936) were applied to representative cases. Plain sections, both untreated and s ...ltttea associated with 7‘/3- and 9‘/3-day normal pregnancies respectively (Carnegie nos. {{CE8020}}, {{CE8215}}). Unfortunately, these sections, which were sta

...to tissues that are lost during development. It includes several of the [[Carnegie Collection]] embryos in the figures. ...thology, Harvard Medical School, Boston, and the Department of Embryology, Carnegie Institution of Washington, Baltimore.

...use of the intrinsic nature of the subject, for the functions of which the embryo or fetus is capable at various times are determined by the growth of the ne ...representation, then, allows us to observe the general growth picture from embryo to adult, and gives us a basis upon which to establish a more detailed anal

...ot readily released under the action of estrogen alone (Lendrum and Hisaw, 1936; Engle Burford and Elder, 1936; Fish, Young and

...s a description of the development of the human adrenal gland using many [[Carnegie Collection]] embryos. Note that this describes the neural crest contributio ...seriated, well preserved, and adequately stained material available in the Carnegie Embryological Collection, in Baltimore, Maryland, made a complete histologi

...pear very early in development as specialized region (otic placode) on the embryo surface that sinks into the mesenchyme to form a vesicle (otic vesicle = ot * stage 13/14 embryo (shown below) the otic placode has sunk from the surface ectoderm to form a

...pear very early in development as specialized region (otic placode) on the embryo surface that sinks into the mesenchyme to form a vesicle (otic vesicle = ot * stage 13/14 embryo (shown below) the otic placode has sunk from the surface ectoderm to form a

...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.

=Part V - The Care of the Developing Embryo= ...embryonic membranes, and in many species, the retention of the developing embryo within either maternal or paternal body structures (Chap. 22).

...ry of Natural Products Related to Phenanthrene, by L. F. Fieser, New York, 1936; Sterols and Related Compounds, by E. Friedmann, Cambridge, England, 1937; ...hed by L. B. Clark and W. N. Hess, "Swarming of the Atlantic Palolo W6rm," Carnegie Institution of Washington^ Publication d'^l).. Papers from the Tortugas Lab

...mative cells, i.e., all the cells enter directly into the formation of the embryo's body. ...organforming areas which later enter into the formation of the body of the embryo; auxiliary or non-formative tissue has no part in its composition. All coel

...logue.jpg|200px|alt=Orts Llorca Madrid embryo catalogue|Orts Llorca Madrid embryo catalogue|left]] ...dentally, in the University of Valencia, during the Spanish Civil War from 1936-1939) and, later on, at the Faculty of Medicine of Madrid (Complutense Univ

....jpg|90px|left]] This historic 1941 paper by Gilmour describes early human embryo blood formation. ....065 x 0.045 mm. Age about 16 days, probably slightly younger than Peters’ embryo (1899).

...and blastulation appear normal. However, gastrulation is abortive, and the embryo soon dies (Moore, '41, '46, '47). ===6. Relation of Early Cleavage Planes to the Antero-posterior Axis of the Embryo===

...s thesis by Stewart describes development of the blood supply to the human embryo basal ganglia. =The Development of the Blood Supply to the Human Embryo Basal Ganglia=

===3. Basic Structure of the Vertebrate Skin in the Embryo=== In the embryo of the shark, chick, and mammal, the single-layered condition of the primit

...f the Carnegie Institution of Washington. The uterus in which this 11 -day embryo has attached itself is in the typical progestational phase, as shown by the Carl G. Hartman, Time of Ovulation in Women. Baltimore, 1936.

...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