Prenatal Development

HOW A BABY I BORN – IN THE EYES OF A CHILD

Information The optimum age range for a woman to have a child is 20-35 years. The recommended optimum weight gain during pregnancy is between 24-30 pounds. For twins it is 40-45 pounds. Eat 300 extra calories per day starting in 4th month

Stages of Prenatal Development The stages of Prenatal Development and their time periods: *Prenatal Development = development before baby is born Zygote The first 2 weeks of pregnancy Embryo 3rd through 8th week of development Fetus After 8th week until term of delivery

Where Do Babies Come From? http://www.youtube.com/watch?v=bGK9Sar_EpE (The Cosby Show)

Trimesters First Trimester Second Trimester Third Trimester TOTAL Prenatal Period

First Trimester ***Most critical and greatest time of risk and vulnerability for birth defects Signs and symptoms of pregnancy most likely to occur Majority of physical development occurs (every physical feature and vital organs form, heart beats and brain waves begin, etc…) Small maternal weight gain

Second Trimester Quickening: slight fetal movements felt by mother (5th month usually) Increased organ development Physically easiest trimester on mom

Third Trimester Physically most demanding time for pregnant mom due to discomforts of pregnancy Lightening: dropping movement of baby into Mom’s pelvic region (head-down position to prep for delivery Lanugo (fine hair) and vernix (waxy substance) both covering fetus’s body begin to go away Gains protective fatty layer Fetus grows and gains weight rapidly (5-6lbs) Builds antibodies the last month to help baby have healthier start once outside womb

Total Prenatal Period 40 weeks OR 9 months

Where Do Babies Come From? http://www.youtube.com/watch?v=l4lG4m5kdWM

Prenatal Birth Terms Amniotic Fluid Amniotic Sac Guards against jolts Keeps fetus at constant temperature Keeps fetus from forming connection to endometrium lining Amniotic Sac Holds amniotic fluid Very strong Clear, transparent membrane sac surrounding fetus Before delivery – broken to allow baby to exit out

Prenatal Birth Terms Birth Canal/Vaginal Canal Vaginal canal and vagina are called birth canal during delivery of fetus

Prenatal Birth Terms Placenta Umbilical Cord Organ attached to the endometrium lining Filters and transfers nutrients and oxygen to fetus Umbilical Cord Connection between fetus and placenta Passes oxygen and nutrients from mother to child Returns waste products to mother

Prenatal Birth Terms Uterus/Womb – uterus is called a womb when a fetus is growing inside it