embryonic development28 February 2012

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fertilization

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where do babies come from?

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germ layers

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germ layers

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germ layers

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germ layers

• ectoderm:• skin & nervous system• endoderm:•digestive tract & visceral derivatives•mesoderm:• skeleton, muscle, circulatory system

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first trimester

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second trimester

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third trimester

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assisted reproductive techniques

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anatomy

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artificial insemination

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in vitro fertilization

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gamete intrafallopian transfer

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Intracytoplasmic sperm injection

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why?

•Why might these technologies be successful?•What could be the problem that makes

natural conception impossible?• GIFT and AI are similar. Why use one and

not the other?•Why use ICSI instead of just mixing a

combination of sperm and egg cells like in IVF?

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CHAPTER 6 TEST

•Wednesday, March 7th

• Friday, March 9th (last day before spring break)

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Just Because We Can, Does It Mean We Should?•pg. 236

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human reproduction

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• anus• bulbourethral gland• epididymis• penis• prostate• scrotum• seminal vesicle• testis• ureter• urethra• urinary bladder• vas deferens

• anus• cervix• endometrium• fimbriae• ovary• oviduct• rectum• ureter• urethra• urinary bladder• uterus• vagina• vulva

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