Fetus developmental stages

    • [DOC File]What are the critical periods in prenatal development

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      I. Human Developmental Stages (19A) A. :Zygote->Morula->Blastocyst->Gastrulation->Embryo->Fetus->Adult->gametes* * Gametes enable the life cycle to begin again – the egg and sperm have the unique quality that they can reverse the partial differentiation they have done and begin the cycle again; egg and sperm are a unique type of ...

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    • [DOC File]What are the three areas of change that developmental ...

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      Developmental Stages. Embryo—developmental stage until ninth week. Morula—16-cell stage. Blastocyst—about 100 cells. Fetus—beginning in ninth week of development. The Embryo. The embryo first undergoes division without growth. The embryo enters the uterus at the 16-cell state (called a morula) about 3 days after ovulation

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    • [DOC File]The Reproductive System

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      I. Human Developmental Stages (10A) A. :Zygote->Morula->Blastocyst->Gastrulation->Embryo->Fetus->Adult->gametes* * Gametes enable the life cycle to begin again – the egg and sperm have the unique quality that they can reverse the partial differentiation they have done and begin the cycle again; egg and sperm are a unique type of ...

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    • [DOC File]Development

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      For example, the greatest damage to the fetus from the mother contracting German measles occurs during the third and fourth weeks of pregnancy. Syphilis is more damaging later in prenatal development, four months or more after conception. Rather than affecting organ development as Rubella does, syphilis damages organs after they have formed.

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    • 7 Stages in Fetal Development | Hello Motherhood

      Fetus and enlarged uterus displace many of mother’s abdominal organs. ... Developmental Stages . Neonatal period, infancy, childhood, and adolescence. Two major events occur. Organ systems become fully operational. Individual grows rapidly and body proportions change significantly.

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    • Fetal development week by week | BabyCenter

      The Fetus: At this point the embryo is developed enough to call a fetus. All organs and structures found in a full-term newborn are present. Weeks 9 to 12 -- 3 inches, 1 ounce: size = 4 fingers w/o thumb. The head comprises nearly half of the fetus’ size and the face is well formed. The eyelids close now and will not reopen until about the ...

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