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8 Cards in this Set
- Front
- Back
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Where and when does conception occur?
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12-24 hours after ovulation in fallopian tube
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when does Implantation begin?
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within 7-9 days
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What is an Ovum?
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12-24 hours after ovulation --> until primary villi have appeared
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What is an embryo?
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from end of ovum stage until measurements reach 3 cm (54-56 days)
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What is the fetus?
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period from end of embryo stage until birth
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Development of the fetus in the first trimester
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Heart functions at 3-4 wk
Eye formation 4-5 wk Arm and leg buds at 4-5 wk recognizable face at 8 wk Brain development External genitalia at 8 wk Placenta formed at 12 wk bone ossifiaciton at 12 wk |
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Anatomical Changes during pregnancy
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Breast: enlarge and secrete colostrum
Uterus: Amenorrhea, positve Hegar sign (softening of lower uterine segment), increases in size Cervix: increased vascularity --> softening(Godell's sign) and blue purple color (Chadwicks sign),becomes shorter and more elastic Vagina: becomes mor acidic |
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Alterations affecting CV system
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Heart displaced upward and left,
Cardiac volume increases bu 20%-30%,Heart rate increases, Compression of pelvic veins, |
