Ch. 18 Obstetrics Study Guide Flashcards
What is the name of a physician who specializes in the care of women during pregnancy?
obstetrician
How long is gestation?
40 weeks - 3 trimesters
An ovum is . . .
female sex cell
How long can mature ovum survive?
24 hours
How long can sperm survive?
24 - 72 hours in cervical crypts
Fertilization usually takes place in the outer ______ of the fallopian tube.
1/3 - part closest to the ovary
A zygote is . . .
fertilized ovum
An article of conception is considered an embryo in what time span?
2nd - 8th weeks
An article of conception is considered a fetus after what time span?
9 weeks
The amniotic sac is a strong, thin-walled sac. What is the purpose?
to protect the growing fetus
The outer layer of the amniotic sac is called?
chorion
The inner layer of the amniotic sac is called?
amnion
What is the function of amniotic fluid?
cushions and protects the fetus
What is the placenta?
highly vascular, disk-shaped organ that forms in the pregnant uterine wall for exchange of nutrients and gases between the mother and fetus
What are the 4 functions of the placenta?
fetal respiration
nutrition
excretion
produces hormones HCG, estrogen, and progesterone
The umbilical cord arises from the center of the placenta. What is the function?
lifeline between mother and fetus
Does the blood mix between the baby and mother?
not the firstborn
possible Rh incompatibility in future children
Lacatation =
breastfeeding
Amenorrhea =
absence of menstruation
The uterus grows from ________ to _________ during pregnancy.
2 oz to 2 lbs
The cervix and vagina take on a bluish-violet hue, this is called . . .?
Chadwick’s sign
due to increased blood flow
early sign of pregnancy
Softening of the cervix is called?
Goodell’s sign
Increased vaginal discharge at the beginning of pregnancy . . .
leukorrhea
What changes happen to the breasts during pregnancy?
increase in size
areola becomes darkly pigmented
What is colostrum?
thin, yellowish fluid secreted by breasts the first few days after delivery
Why is it better for pregnant women to lie on their side?
to prevent supine hypotension
relieve pressure on abdominal blood vessels
Why do women have more urination during the first 3 months of pregnancy?
the increased size of the uterus creates additional pressure on the bladder
What is chloasma?
mask of pregnancy
fades over time
What is a normal weight gain during pregnancy?
20 - 30 lbs
EDC
estimated date of confinement