Chapter 12 - Chapter 12: Pregnancy and Birth Chapter 12...

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Chapter 12: Pregnancy and Birth
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Chapter 12 Outline Fertility Conception: The Incredible Journey Early Signs of Pregnancy Pregnancy Testing: Early Signs Sex Selection: Myth and Modern Methods Assisted Reproduction Assisted Reproduction in Heterosexual Couples Assisted Reproduction in Same-Sex Couples Assisted Reproductive Options
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Chapter 12 Outline (Cont.) A Healthy Pregnancy The Prenatal Period: Three Trimesters The Partner’s Experience Health Care During Pregnancy Exercise and Nutrition Drugs and Alcohol Pregnancy in Women Over 30 Sex During Pregnancy
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Chapter 12 Outline (Cont.) Problems During Pregnancy Ectopic Pregnancy Spontaneous Abortion Birth Defects Rh Incompatibility Toxemia
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Chapter 12 Outline (Cont.) Childbirth Preparing for Birth Birthplace Choices Inducing the Birth Birthing Positions Stages of Childbirth
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Chapter 12 Outline (Cont.) Problems During Birthing Premature Birth: The Hazards of Early Delivery Breech Birth: Feet First Into the World Cesarean-Section Delivery Stillbirth: Sad Circumstance
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Chapter 12 Outline (Cont.) Postpartum Parenthood More Physical Changes for the Mother Postpartum Psychological Changes Sexuality for New Parents Breastfeeding the Baby
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Deciding Whether to Have Children
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Pregnancy and Birth Fertility Assisted Reproduction A Healthy Pregnancy Health Care During Pregnancy Problems in the Pregnancy Childbirth Problems During Birthing Postpartum Parenthood
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Fertility Conception Early Signs of Pregnancy Pregnancy Testing Sex Selection
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Conception: The Incredible Journey Our bodies are designed to promote pregnancy During ovulation: A woman’s sexual desire peaks A mucus plug in the cervix disappears Cervical mucus thins & creates gaps that vibrate with the sperm to aid motility and trap defective sperm; filters bacteria from semen
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Conception: The Incredible Journey (Cont.) Female orgasm pushes semen to the uterus and toward the Fallopian tubes Semen thickens upon ejaculation to stay in the vagina for 20 minutes to aid sperm travel Pregnancy is also complex Many sperm are killed by the female’s immune system Many pregnancies end in spontaneous abortion
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Conception: The Incredible Journey (Cont.) The ovum can live for 24 hours Sperm can live for 72 hours; less than 1% can live up to one week Pregnancy may occur a few days before or after ovulation The ovum may release chemicals to signal its location If a sperm reaches the ovum, it wriggles violently
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As the head of the spermatozoan enters the ovum, the ovum prevents penetration by another spermatozoan.
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Conception: The Incredible Journey (Cont.) Only one sperm fertilizes an ovum by secreting a chemical that makes a hole in the ovum coating Immediately the ovum coating changes & does not permit further sperm from entering Fertilization takes about 24 hours, usually in the ampulla Zygote – a fertilized ovum
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This note was uploaded on 04/07/2012 for the course ACCT 201 and 20 taught by Professor Any during the Spring '12 term at Old Dominion.

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Chapter 12 - Chapter 12: Pregnancy and Birth Chapter 12...

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