sexual response, pregnancy and birth Flashcards
functions of hormones
oxytocin- feeling of relaxation, social bonding
vasopressin- regulate blood flow to genitals
dopamine- feeling of pleasure
sexual response
physiological and psychological changes that occur in body during sexual behavior
sexual response cycle- masters and johnson
- excitement- vasocongestion (increase blood to genitals)
- plateau- arousal continues
- orgasm- ejaculatory inevitability, release of vasocongestion
- resolution-heart rate and breathing return to normal
what are early signs of pregnancy
missing a period, tender breath, frequent urination, nausea
pregnancy testing
- measure hCG in urine
- blood test
sex selection
before conception: microsorting x and y
after conception: amniocentesis tests fluid for chromosomes
what is infertility
inability to conceive after one year of penile-vaginal intercourse
4 ways to assist human reproduction
fertility drugs
surgery
artificial insemination
in vitro fertilization
how long is a full term pregnancy
40 weeks
divided into 3 periods around 14 weeks each
what happens during the first trimester
around 1-13 weeks most systems begin to develop
what happens during the second trimester
14-28 weeks, reflexes, tooth buds, movements
lanugo and vernix cover fetus
when can you pick up sex characteristics
20-22 weeks
what happens during the third trimester
28-40 weeks, fetus develops fat deposits
brixton-hicks contractions
intermittent contractions of uterus after 3d month
ectopic pregnancy
fertilized ovum implants outside uterus
red blood cell incompatibility
maternal blood is Rh- and baby is Rh+
toxemia
rapid weight gain, fluid retention, protein in urine
Apgar test
check well being of infant
stillbirth
fetus that dies after 20 weeks
how long after pregnancy before uterus returns to original shape
6 weeks
how long until cesarean section incisions heal
two weeks
how long postpartum until return to original levels of desire and excitement
3 months
