PSYCO105 Chapter Notes - Chapter 11: Egocentrism, Trolley Problem, Mental Model
2 Nov 2015
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Adolf hitler loved art and his mother lived on the streets for a few years after his mother died. Development psychology: study of continuity and changes over the life span. Prenatal stage: begins 9 months before birth at conception. 200 million sperm enter vagina 200 sperm get into the right fallopian tube they release digestive enzymes when they reach the egg to erode its outer layer. Once one sperm has penetrated the egg, the egg releases a chemical that seals the coating and prevents other sperm from penetrating. Sperm sheds its tail and fertilizes the egg sperm/egg nuclei merge 12 hours later. Zygote: fertilized egg contains 23 chromosomes from egg and 23 from sperm. Germinal stage: conception to 2 weeks, the zygote divides multiple times. Zygote migrates to and implants in the uterus (make zygote are less likely to make this journey) Embryonic stage: 2nd to 8th week where zygote becomes an embryo has a heartbeat, arms, legs.
