discoidal placenta

См. также в других словарях:

• Placenta — Saltar a navegación, búsqueda Ubicación de la placenta La placenta del latín torta plana refiriéndose a su apariencia en humanos[1] …   Wikipedia Español

• reproductive system, animal — Introduction       any of the organ systems by which animals reproduce.       The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… …   Universalium

• discoplacenta — A placenta of discoid shape. * * * dis·co·pla·cen·ta .dis kō plə sent ə n a discoidal placenta …   Medical dictionary

• animal development — Introduction  the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by …   Universalium

• EMBRYOGENÈSE ANIMALE — Chez les animaux, l’œuf est une cellule unique, souvent de grande dimension, à noyau digamétique, c’est à dire formé par l’assemblage des noyaux des cellules reproductrices ou gamètes. Le cytoplasme cellulaire renferme des réserves plus ou moins… …   Encyclopédie Universelle

• Cleavage (embryo) — In embryology, cleavage is the division of cells in the early embryo. The zygotes of many species undergo rapid cell cycles with no significant growth, producing a cluster of cells the same size as the original zygote. The different cells derived …   Wikipedia

• Embryologie — L embryologie est une discipline scientifique qui englobe la description morphologique des transformations de l œuf fécondé en organisme (embryologie morphologique) et l étude de leur déterminisme (embryologie causale). L « embryologie… …   Wikipédia en Français

• Metadiscoidal — Met a*dis*coid al, a. [Meta + discoidal.] (Anat.) Discoidal by derivation; applied especially to the placenta of man and apes, because it is supposed to have been derived from a diffused placenta. [1913 Webster] …   The Collaborative International Dictionary of English

• Embrión — Saltar a navegación, búsqueda El embrión de un animal es la etapa inicial de desarrollo de éste mientras se encuentra en el huevo o en el útero de su madre. En el ser humano, el término se aplica hasta el final de la séptima semana desde la… …   Wikipedia Español

• blood disease — Introduction       any disease of the blood, involving the red blood cells (erythrocytes (erythrocyte)), white blood cells (leukocytes (leukocyte)), or platelets (platelet) (thrombocytes) or the tissues in which these elements are formed the bone …   Universalium

• metadiscoidal — “+ adjective Etymology: meta + discoidal of a placenta : orig. diffuse but becoming discoidal (as in man and some apes) …   Useful english dictionary