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→Month wise development of embryo and foetus
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'''Week 2'''- implantation, extraembryonic mesoderm, primitive streak, gastrulation
−'''Week 3''' - gastrulation, notochordal process, primitive pit, notochordal canal, Somitogenesis, cardiac primordium, head fold
−'''Week 4''' - neural fold fuses, rostral neuropore closes, caudal neuropore closes
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|'''1st month'''|| Attains the consistency resembling shleshma(mucoid character),or jelly mass(kalala) in which all the body parts though present are not conspicuous.
|'''1st month'''|| Attains the consistency resembling shleshma(mucoid character),or jelly mass(kalala) in which all the body parts though present are not conspicuous.
−1st day-jelly mass(kalala),10th day-buble like(budbuda),15th day-solid (ghana),20th day-muscle like (mamsa panda),25th day-more conspicuous || '''Week 1'''- fertilized oocyte, zygote, pronuclei, morula cell division with reduction in cytoplasmic volume, blastocyst formation of inner and outer cell mass, loss of zona pellucida, free blastocyst, attachment of blastocyst
+1st day-jelly mass(kalala),10th day-buble like(budbuda),15th day-solid (ghana),20th day-muscle like (mamsa panda),25th day-more conspicuous || --
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|2nd month||Converted into Compact or solid form
|2nd month||Converted into Compact or solid form