Microsoft+PowerPoint+-+Conception+and+Prenatal+Development+Lectures+4+and+5+for+Students

Microsoft+PowerPoint+-+Conception+and+Prenatal+Development+Lectures+4+and+5+for+Students

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Conception and Prenatal Development October 5 and October 7, 2010 Infant Development, Fall 2010 Chapter 3 Conception Conception • Once every 28 days, during the middle of the menstrual cycle, an egg is released – Egg travels through the fallopian tube – Uterine lining thickens – If not fertilized, egg is discarded with uterine lining through menstruation • Men can produce about 300 million sperm – About 300 to 500 sperm reach the fallopian tube – Sperm can live for approximately six days
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Female Reproductive System Berk (2003) Assisted Reproductive Technology • Possible means of conception for individuals who are unable to do so naturally Assisted reproductive technology (ART): ______ ________________________________________ ________________________________________ In vitro fertilization (IVF): Fertilize eggs outside of the body, implant developing embryo into uterus Assisted Reproductive Technology Gamete intrafallopian transfer (GIFT): Transfer unfertilized egg and sperm into fallopian tube • Use of ART to promote pregnancies in women who are too old to conceive naturally • Success rate of ART depends many factors • Consider artificial insemination: ART or not?
Background image of page 2
3 Prenatal Development Period of the Zygote Two-cell stage Four-cell stage Time A time for cell division ______________ ______________ ______________ Sixteen-cell stage Berger (2003) Attached Blastocyst Berk (2003)
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 Period of the Embryo A time of cell migration, differentiation, death ________________ ________________ ________________ ________________ ________________ A time for major developmental advances Kail (2004) Specialization of Cells • Early cell fate Trophoblast: The “support system” for the organism Embryonic disk, germ disc, or inner cell mass: Developing organism The ____________ initially develops the most rapidly Kail (2004) Gastrulation • Folding of the embryonic disk _______________: Nervous system, skin _______________: Muscles, skeleton _______________: Digestive tract, respiratory system • Internal sex organs • Neural tube: Most neurons have formed and arrive at their final destination by three-and-a-half weeks
Background image of page 4
5 How Development Proceeds
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/28/2010 for the course PSYCH PSYCH 110D taught by Professor Angelaluwoski during the Winter '10 term at UC Irvine.

Page1 / 12

Microsoft+PowerPoint+-+Conception+and+Prenatal+Development+Lectures+4+and+5+for+Students

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online