1. Pregnancy and Childbirth Lesson #24

2. Conception / Fertilization: union of an ovum and a sperm. Conception / Fertilization: union of an ovum and a sperm. Takes place in the upper 1/3 of the fallopian tube Takes place in the upper 1/3 of the fallopian tube Heredity: passing of characteristics from biological parents to their children. Heredity: passing of characteristics from biological parents to their children. Chromosome: carries genes. Chromosome: carries genes.

3. Gene: unit of hereditary material Gene: unit of hereditary material –46 Chromosomes (23 from father, 23 from the mother) –Female: X chromosome –Male: X or Y chromosome –XX = female –XY = male

4. XX or XY Female Male Female Male

5. Sex-linked characteristics: hereditary characteristics transmitted on the sex chromosomes. Sex-linked characteristics: hereditary characteristics transmitted on the sex chromosomes. Amniotic Sac: pouch of fluid that surrounds a fetus. Amniotic Sac: pouch of fluid that surrounds a fetus. Endometrium: Inner lining of the uterus. Endometrium: Inner lining of the uterus.

6. Embryo: Conception to 2 nd month of growth. Embryo: Conception to 2 nd month of growth. Fetus: 9 th week to birth Fetus: 9 th week to birth Placenta: Anchors the embryo to the uterus. Placenta: Anchors the embryo to the uterus. Umbilical Cord: Ropelike structure that connects the embryo to the placenta. Umbilical Cord: Ropelike structure that connects the embryo to the placenta.

10. Tools to determine if the baby is developing correctly Ultrasound: provide an image of the developing baby Ultrasound: provide an image of the developing baby Amniocentesis: the use of a needle (inserted into the uterus to get fluid from the amniotic sac) Amniocentesis: the use of a needle (inserted into the uterus to get fluid from the amniotic sac)

12. Pregnancy 1 st sign of pregnancy 1 st sign of pregnancy –Woman will miss her period Labor: Process of childbirth Labor: Process of childbirth –Dilation of the cervix –Delivery of the baby –Delivery of the placenta

13. Complications Ectopic Pregnancy Ectopic Pregnancy Miscarriage Miscarriage Cesarean Section Cesarean Section Stillbirth Stillbirth

14. Apgar Score: rating of the baby 1 to 5 minutes after birth. Apgar Score: rating of the baby 1 to 5 minutes after birth. Postpartum period: Hormones produce changes in the mother’s body. Postpartum period: Hormones produce changes in the mother’s body. After the Baby is Born