Ch.3: Birth and the Newborn Baby: In the New
World Questions and Answers (100% Correct
Answers)
Braxton-Hicks contraction
Ans: - first contractions experienced
- relatively painless
- may serve to tone muscles that will be used in delivery
Cervix
Ans: - Narrow lower end of uterus through which baby passes to reach vagina
- mucus that had plugged cervix (and protected uterus from infection) dislodges
amniotic fluid may flow out
- pressure from fetus may cause blood vessels to rupture, causing bleeding
Prostaglandins
Ans: - Hormones that stimulate uterine contractions
- fetus signals that it is 'ready' to be born
Oxytocin
Ans: hormone released by pituitary gland that stimulates labor contractions
powerful enough to expel baby
Stage One: Effacement and Dilation
Ans: - Uterine contractions EFFACE and DILATE (to about 4 in)
- Dilation causes the most pain of childbirth
- longest stage (a few hours to more than a day)
- at first, contraction spaced 10-20 min apart, then become more powerful and
regular
- prepping occurs (pubic hair removed to facilitate an episiotomy and reduce
infection risk, enema to prevent bowel mvmt)
- fetal heart rate may be meausred
- TRANSITION
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Transition
Ans: When cervix nearly fully dilated, head of fetus begins to move into vagina
Episiotomy
Ans: Surgical incision between birth canal and anus that widens vaginal opening
Stage Two: Crowning and Delivery
Ans: - briefer than stage 1 (minutes to a few hours)
- Baby's head begins to emerge from birth canal (CROWNING) -- contractions strech
the skin around birth canal and propel baby along
- Once crowning occurs, baby emerges within minutes
- espisitomy may be performed to prevent random tearing
- mucus suctioned from baby's moth when head emerges to clear breathing
passageway of obstructions
Stage Three: Placental stage
Ans: - lasts from minutes to an hour or more
- placenta separates from uterine wall and comes out of birth canal
- Episiotomy is sewn
Midwife delivery
Ans: - Delivers baby in women's home
- limited access to sophisticated medical instruments and anesthetics
- childbearing has become impersonal and modern medicine 'wrests control from
women over their own bodies'
Anestheisa
Ans: - General anesthesia: deadens pain by putting mother to sleep; reduces
responsiveness of baby shortly after birth
- Local anesthetics: deaden pain in an area of the body
1) Pudenal block: mother's external genital's numbed by injection
2) epidural block and spinal block: anesthesia injected into spinal cord/canal; numbs
body below waist; minor depressive effects on neonates