HN 196- Midterm Exam Guide - Comprehensive Notes for the exam ( 15 pages long!)

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First de(cid:272)ade: (cid:271)ody"s pri(cid:373)ary fo(cid:272)us o(cid:374) its o(cid:449)(cid:374) gro(cid:449)th a(cid:374)d de(cid:448)elop(cid:373)e(cid:374)t. Menstruation begins: body begins to offer ova for reproduction. Fertilization: union of egg and spermatozoon to create zygote. Bmi between 19. 8 and 26. 0 kg/m2 and appropriate level of physical activity. A healthful diet before conception reduces the risk of developing nutrition-related disorders during pregnancy, such as gestational diabetes preeclampsia. Some deficiency related problems develop very early in pregnancy. Neural tube defects related to inadequate level of folate effects the embryo in the first few weeks adequate folate (400 g daily) before conception can reduce the risk. A full term pregnancy lasts 38 to 42 weeks. Embryonic stage: approximately day 15 to week 8. After week 8, the developing baby is called a fetus. Physical activity: any muscle movement that increases energy expenditure. Leisure-time physical activity: any activity unrelated to a person"s occupation.