extra Flashcards
how many corpus spongiosum and cavernosum arethre
one spongiosum
two cavernosum on dorsal
where does semen come from
seminal vesicle
what does physical binding of sperm head with ZP lead to
acrosome reaction
what triggers compeltion of MII in oocytes
sperm fusion and ca cascade in cytoplasm
what does ca cascade lead to
release of cortical granules bw membrane and ZP to inactivate ZP binding proteins blockingpolyspermy
what cycle of endometrium is early embryo reinserted into for ART
secretory cycle
what maintaines endometrium in secretory phase
CL secreting progesterone and estrogen
hCG and endometrium
maintains hormone production of CL before placenta take over at 3 months
estrogen and progesterone over pergnancy
rise
hCG during pregnancy
pearks at month two to support early prenancy
stops periods
stops at month 3
what secretes relaxin
corpus luteum and placenta
hCS and glucose
breaks down fat so gllucose and FA goes to kid
blood pressure in pregnancy
reduced
when do braxton hicks contractions occur
late states of genstation
onset triggers of placental clock and partruition
CRH, estrogen, inflamatory responses
oxytocin in placenal clock
more receptors
uterine involution
uterus shrinking to prepregnancy size
why does uterus involution occur
bc placental source of estrogen and progesterone is gone
very late embryo division in monozygotic twins
ICM may not split- conjoined twins
what stimulates prolactin and hCS to induce enzymes for milk production
high estrogen in late gestation
what stimulates enzymes for milk production
prolactin and hCS
what initiates lactation
sudden drop in estrogen and progesteron which also causes uterine involution
when is alveolae ductal system operational
after birth
what is in collustrum
immunity factors, minerals, protein, GI tract readiness
where are the defensiev agents mucus, lactoferrin, bifidus factor found
in braeastmilk
where are B cells, T cells, macrophages, and neutrophils and antibodies IgA secretory found
in breastmilk
what hormones are permissiev for lactattion
crotisol, insulin, PTH, GH
what supresses mesntrual cycle
supress FSH and LH
how do oral contraceptives work
hormone formulation that supresses FSH and LH for 21 days then hormone withdrawal for a week
feedback of OC
negative
emergency contraceptive
synthetic progesterone
copper IUD
