Prenatal Developmental Exam Study Guide with Complete Solutions

Prenatal Developmental Exam Study Guide with Complete Solutions germinal period - Correct Answer the period of prenatal development that takes place in the first 2 weeks after conception The span between conception and birth usually lasts 38 to______weeks. - Correct Answer 40 Prenatal development is divided into what three periods? - Correct Answer fetal germinal embryonic The fertilized egg is called the ______. - Correct Answer zygote In the germinal period, the zygote undergoes rapid ________, division. - Correct Answer cell The _______ period is the first period of prenatal development, when the egg is fertilized and cell division takes place. - Correct Answer germinal Typical prenatal development lasts how many weeks? - Correct Answer 38 to 40 ________, which begins the week after conception, is the specialization of cells. - Correct Answer Cell differentiation conception to two weeks post-conception - Correct Answer zygote two weeks to eight weeks, post-conception - Correct Answer embryo two months post-conception to birth matches - Correct Answer fetus Approximately one week after conception, when differentiation of the cells begins, the group of cells is called the________ - Correct Answer blastocyst The ______period includes the creation of the fertilized egg or zygote, cell division and implantation. - Correct Answer germinal The outer layer of cells around the embryo (which will eventually provide nutrition and support for the embryo) is called the_______ - Correct Answer trophoblast or blastocyst During the germinal period, the zygote is undergoing rapid ______. - Correct Answer mitosis Approximately 11 to 15 days after conception, ______ takes place - Correct Answer implantation The ______ period of prenatal development takes place in the first two weeks after conception. - Correct Answer germinal The rate of cell differentiation intensif