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Pregnancy, Growth, and Development

This overview explores the crucial stages of pregnancy, covering the prenatal period from conception to the embryonic and fetal stages, as well as the postnatal phase. Key concepts include implantation, the formation of the placenta, the functions of human chorionic gonadotropin, and the development of the fetus. Important terms such as morula, blastocyst, and teratogens are defined. Additionally, a timeline of significant events during each month of pregnancy is highlighted. This guide serves as an essential resource for students and anyone interested in human development.

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Pregnancy, Growth, and Development

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  1. Pregnancy, Growth, and Development Prenatal Period Postnatal Period

  2. Prenatal Period • Period of cleavage • When does conception begin? • What is cleavage? • What is a morula? • What is a blastocyst?What is the embryo proper? • Draw and label pg. 881 figure 23.5 in your notes • What is implantation? • What is the placenta? • What is the function of human chorionic gonadotropin? • Embryonic stage • When does the embryonic stage occur? • Define the following terms: amniotic cavity, embryonic disc, primary germ layers, gastrula, chorion, chorionic villi, lacunae, amnion,amniotic fluid, umbilical cord, yolk sac, allantois, and teratogens. • Fetal stage • When does the fetal stage begin and end? • What is a fetus? • What does full-term mean? • List the major events that occur per month starting at the third month and ending with the third trimester. • Know the Stage and Time Period (Pg. 895, Table 23.3) of Prenatal Development

  3. Postnatal Period • We will cover this on Friday in class.

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