ch 9 Flashcards
how long do most pregnancies last
40 weeks
name for fusion of sperm cell with egg at fertilization
zygote
where does fertilization usually occur
in the fallopian tubes
what is it called when the zygote is implanted in the uterine lining
embryo
contains an unfertilized egg
follicle
released into the bloodstream soon after the embryo implants in the uterus to stimulate the ovaries to increase production of estrogen and progesterone
human chorionic gonadotropin
increased____ and _____ bring about the first noticeable signs of pregnancy:
– Absence of the next menstrual period
– Occasional nausea and vomiting
– Enlarged and tender breasts
– Increased frequency of urination
– Fatigue
– Enlargement of the uterus
estrogen and progesterone
pregnancy occurring outside the uterus, usually in the fallopian tube
ectopic
pregnancy is divided into
3 month trimesters
nearly all of the fetal body forms by the __ week after fertilization
10th
fluid that protects the fetus during development
amniotic fluid
fluid-filed sac in which fetal growth and development takes place
amnion
Flat, circular vascular structure within the
pregnant uterus that provides nourishment to and
eliminates wastes from the developing embryo
and fetus
* Manufactures many hormones needed to sustain
pregnancy
* Passed as afterbirth after the baby is born
placenta
any other position during birth than the baby’s head being down
breech
normal uterine contractions that occur periodically during pregnancy
braxton-hicks
