Quain's Elements of Anatomy, Volumen1,Tema 1Longmans, Green, 1890 |
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Página 16
... GROOVE . Segmentation of the ovum . - Immediately after the completion of the process of fertilization , the ovum begins to show signs of division into two cells or segments . The division is preceded by the formation of a spindle ...
... GROOVE . Segmentation of the ovum . - Immediately after the completion of the process of fertilization , the ovum begins to show signs of division into two cells or segments . The division is preceded by the formation of a spindle ...
Página 19
... groove - the primitive groove . The proliferating primitive ectoderm comes into close relationship below this groove with the primitive entoderm , and the two may be partly or Fig . 17. - EMBRYONIC AREA OF MOLE IMMEDIATELY PRIOR TO ...
... groove - the primitive groove . The proliferating primitive ectoderm comes into close relationship below this groove with the primitive entoderm , and the two may be partly or Fig . 17. - EMBRYONIC AREA OF MOLE IMMEDIATELY PRIOR TO ...
Página 20
... groove , but since in this situation the two primary layers become eventually more or less blended , it is probable that the primitive entoderm cells also take part in its formation , although this part is in the mammal evidently a ...
... groove , but since in this situation the two primary layers become eventually more or less blended , it is probable that the primitive entoderm cells also take part in its formation , although this part is in the mammal evidently a ...
Página 21
... groove is seen in optical section : this is the rudiment of the nervous system . ologists that cells from the lateral parts of both primary layers are added to the intermediate layer , and assist in its extension . According to the ...
... groove is seen in optical section : this is the rudiment of the nervous system . ologists that cells from the lateral parts of both primary layers are added to the intermediate layer , and assist in its extension . According to the ...
Página 22
... groove ( primitive groove ) , which indents an ectodermal thickening ( primitive streak ) , and if the posterior invagination represents a blast opore , this groove must be looked upon as an extension of such blas- topore , a view which ...
... groove ( primitive groove ) , which indents an ectodermal thickening ( primitive streak ) , and if the posterior invagination represents a blast opore , this groove must be looked upon as an extension of such blas- topore , a view which ...
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Términos y frases comunes
Abth alimentary canal allantois amnion Anat Anatomie Anzeiger aorta aortic aperture appearance Archiv f arterial arches auricular Balfour become formed blastoderm blood blood-vessels bulb cardinal vein cartilage cartilaginous cavity cells chick chorion cleft cœlom connective tissue cord Crown 8vo decidua dorsal duct of Cuvier ductus ectoderm elasmobranchs embryo enclosed endocardial enlarged Entwicklung epiblast epithelial external fibres fold formation ganglion glands groove grow heart HUMAN EMBRYO hypoblast invagination jugular Kölliker lateral layer left auricle liver longitudinal lower male mammals Meckel's cartilage median membrane mesoblast Müllerian duct muscle muscle-plate nerve neural canal notochord olfactory optic vesicle organ orifice origin ovary ovum Physiol placenta portion posterior primitive streak protovertebræ pulmonary right and left rudiment SECTION segmental separated septum side sinus spinal subsequently thickening transverse trunk tube Ueber umbilical vein upper uterus vascular vena cava venosus ventral ventricle vertebral vessels visceral arches vitelline veins wall Wolffian body Wolffian duct Woodcuts Zool
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