HS lec3 - Conception, Pregnancy and Birth Eggs 0. Born with...

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Conception, Pregnancy and Birth Eggs 0. Born with eggs 1. Largest cell in the human body Sperm Produced throughout adult life One of the smallest cells in the human body Conception/Fertilization 0. Capacitation – sperm releases enzyme 1. Breakdown of zona pellucida 2. Egg develops hard outer coat 3. Head of sperm pulled in and nuclei meet Conception/Fertilization Early Fetal Development 2. Pronucleate stage 3. Zygote begins to move down fallopian tube and begins to divide (1-2 days) 4. Morula (3-4 days) 5. Blastula (4-5 days) 6. Blastocyst (5-6 days) 7. Implantation
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Pregnancy Detection 8. Human chorionic gonadotropin (HCG) 9. Hegar’s sign 10. Fetal heartbeat The Placenta First Trimester: Baby 11. Months 1 and 2: Embryonic Stage 0. Placenta 1. Amniotic sac/fluid 2. Heart, digestive system, central nervous system, umbilical cord blood supply, facial features, hands, feet, beginnings of bone, blood vessels, testicular tissue 12. Month 3: Beginning of Fetal Stage 3.
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HS lec3 - Conception, Pregnancy and Birth Eggs 0. Born with...

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