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Prenatal Development. Sperm: The male sex cell Ovum: The female sex cell. Conception. The union of an ovum (egg) and a sperm, resulting in the beginning of pregnancy. www.teenwire.com (Prevention). www.teenwire.com. Fallopian Tubes: Where conception usually takes place. Ovary:
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Sperm: The male sex cell • Ovum: The female sex cell
Conception • The union of an ovum (egg) and a sperm, resulting in the beginning of pregnancy. • www.teenwire.com (Prevention)
www.teenwire.com Fallopian Tubes: Where conception usually takes place • Ovary: • Releases the egg
Where does conception usually take place? In the fallopian tubes
Where does the fertilized egg implant? • In the uterus.
Vagina: • The opening to the reproductive organs • Passageway through which menstrual flow leaves the body
Pap Smear: Test for cervical cancer
Obstetrician • A doctor that specializes in the care of pregnant women.
Prenatal Period • The time from conception to birth
The First Trimester of Pregnancy • Most miscarriages are likely to occur at this time
Miscarriage • The natural ending of a pregnancy before the fetus could survive.
Stillbirth • The natural ending of a pregnancy after 20 weeks • this happens by accident and is not the fault of the father or mother
Ectopic Pregnancy • (Tubal Pregnancy) • When a fertilized egg implants in the fallopian tubes.
Embryo • The developing cluster of cells from the third to the eighth week of pregnancy.
What is a congenital problem? • a physical or biochemical problem in a baby that is present at birth. • Down Syndrome • Cleft Lip • Muscular Dystrophy • Cerebral Palsy
What causes congenital problems? • Environmental causes • nutritional balance of mother’s diet • any disease or infections the mother may have during pregnancy • harmful substances • outside hazards (radiation) • Heredity • Errors in chromosomes
Fetal Alcohol Syndrome • 3/1,000 babies have FAS • Mother drinks heavily during pregnancy • alcohol interferes with brain development • heart defects • poor motor development FAS Brain Normal Brain
The Second Trimester of pregnancy • Movement of the fetus is felt by the mother.
Fetus: • The unborn baby from about the eighth or ninth week till birth.
Ultrasound: • To evaluate the growth & development of the fetus. • A technique using sound waves to make a video image of an unborn baby
Primary purpose of an ultra sound? • To check for health problems and fetal development • Skeletal/ organ defects
Amniocentesis • The withdraw a sample of the amniotic fluid surround an unborn baby with special needle and testing for fluid for indications of specific birth defects or other health problems
Rh Factor • Protein substance found in the red blood cells of 85 % • Causes a problem to the baby when the father is Rh+ and the mother is RH- Rh Disease: type of anemia that destroys the baby’s red blood cells
Iron • Needs more iron than usual to produce all the blood needed to supply nutrition to the placenta
FOLIC ACID • Aids in the creation of the baby's nervous system. • Folic acid can help prevent congenital defects such as, spina bifida, cleft palate or cleft lip.
Weight Gain for Mom • Suggest between 25-30 lbs • Eat an extra 300 calories per day • Much of the weight gain goes to the growing baby and the tissues that support it
Physical Activity • Should be active unless told otherwise from her doctor • Avoid contact sports • Helps keep weight within normal activity, strengthens muscles used during birth, increases energy
STOP!!! • We are going to switch gears now and move on to look at fetal development in more detail.
The Third Trimester of Pregnancy • If born, the baby has the greatest chance of survival. • The fetus assumes the birth position. • The unborn fetus grows ½ pound per week. • The unborn child develops protective immunities.
3 Stages of Labor • 1st Stage: • Contractions begin • Cervix dilates • 2nd Stage: • Child birth • 3rd Stage: • Placenta is expelled
Lightening: • The term that best describes the baby dropping in to the birth position.
Amniotic Fluid • Acts as a shock absorber for the fetus.
Show • vaginal discharge prior to the beginning of birth • mucus plug is released from the cervix • brownish or blood tinged • labor will begin in 3 days
Contraction: • The tightening and releasing of uterine muscles.
Dilation: The widening of the cervix Effacement:The thinning of the cervix
Cervix: • The lower part of the uterus
Labor • The process by which the baby gradually moves out of the uterus.
Breech Birth: • When the baby is born feet or buttocks first.
Caesarean: • (C-section) baby born by surgical opening in the uterus.
Crowning • Appearance of the head during delivery