LECTURES FOR FINAL EXAM

LECTURES FOR FINAL EXAM - Gender& Women Studies INFO...

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Unformatted text preview: Gender & Women Studies INFO FOR FINAL EXAM 16:01 Monday April 4, 2011 Process If the egg is fertilized, the new formation, “the zygote”, will remain in the fallopian tub for about 72 hours About 6 days after conception, the blastocyst will implant in uterus About 48 hours after implantation, the blastocyst will produce Human Chorionic Gonadotropin (HGC/hCG) The hCG will maintain the corpus luteum producing high levels of progesterone The CL is now called corpus luteum graviditatis By the 12 th week, the placenta will produce its own hormones to maintain pregnancy Placenta Temporary organ joining the mother and fetus, rich in blood vessels 1. Nutritional function Allows the transfer of nutrients and oxygen from mother to fetus Transfers waste products and carbon dioxide back from the fetus to the mother 2. Metabolic and endocrine functions, producing: Placental progesterone and estrogen that thicken and maintain the uterine lining Relaxin (also the corpus luteum graviditatis) Lactogen that helps prepare the mammary glands 3. Immunological function: During the last three months, antibodies from the mother are passed to the fetus (passive immunity) Stages of Labor (Sloane) Stage 1: true labor contractions; cervix dilated 10 cm (transition) Stage 2: delivery of baby Stage 3: delivery of placenta and membranes (called afterbirth) Very important that the whole entire placenta comes out If a little piece of the placenta is left over, it can cause a very bad infection Stage 4: first hour after labor See how the uterus is contracting If the bleeding has stopped Breast Milk & Hormones Prolactin: produced by the anterior pituitary gland; causes the synthesis of the milk Oxytocin: produced by the posterior pituitary gland; causes the release of milk Breast feeding and Ovulation Breast feeding may stop ovulation BUT ONLY IF: Baby is less than 6 months old Mother had no period since birth Baby is given only breast milk No more than 6 hours between feedings Baby is fed also during the night MUST breast feed at least 6-7 times a day to prevent ovulation: This causes high prolactin High prolactin causes negative feedback (shuts down LH and FSH) Follicles are not developed High prolactin makes the ovaries insensitive to LH and FSH Colostrum: “liquid gold,” first milk during the first days after delivery Contains antibodies to protect the baby against specific diseases during the first month of life Highly concentrated in nutrients Helps the baby to have the first stool Important to give the first few days of colostrum to the baby Some Medical Interventions:...
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This note was uploaded on 02/02/2012 for the course GWS 103 taught by Professor Aronselly during the Spring '11 term at University of Wisconsin.

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LECTURES FOR FINAL EXAM - Gender& Women Studies INFO...

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