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For more than 2000 years, embryologists, biologists, and philosophers have studied and detailed the processes that follow fertilization. The…
TechnologyCell LineageEarly development occurs in a highly organized and orchestrated manner and has long attracted the interest of developmental biologists and…
Cell LineageIn humans, multi-fetal pregnancy occurs when a mother carries more than one fetus during the pregnancy. The most common multi-fetal pregnancy is…
ReproductionFetusHuman DevelopmentVACTERL association is a term applied to a specific group of abnormalities involving structures derived from the mesoderm. Although the defects of…
VATER syndromeVACTERL associationCongenital DisordersThe spinal column is the central structure in the vertebrate body from which stability, movement, and posture all derive. The vertebrae of the spine…
Congenital, Hereditary, and Neonatal Diseases and AbnormalitiesReproductionVertebratesCongenital DisordersSomites are blocks of mesoderm that are located on either side of the neural tube in the developing vertebrate embryo. Somites are precursor…
Somatic cellsSomitesTwin-to-Twin Transfusion Syndrome (TTTS) is a rare placental disease that can occur at any time during pregnancy involving identical twins. TTTS…
Fetofetal TransfusionReproductionFetusCongenital DisordersHuman DevelopmentGastrulation is an early stage in embryo development in which the blastula reorganizes into three germ layers: the ectoderm, the mesoderm, and the…
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