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Terms in this set (381)
- after ovulation
- occurs in ampullar isthmic junction
- once completed egg descends to uterus
- egg is surrounded by zona pellucida
fertilization - after egg penetration by sperm --> single cell
embryo (zygote) undergoes multi cell division
(mitosis)
- at end of cell division embryo is a mass of
organized cells (blastocyst)
how long is egg capable 12-24 hrs
of fertilization
- surrounds egg
zona pellucida - once penetrated by a sperm then no other sperm
can penetrate
- once embryo reaches blastocyst stage --> it
implantation hatches out of zona pellucida & begins looking for a
blood rich spot to stay in the uterus
when does implantation 5-6 days after fertilization
occur
, which methods have the - EC --> copper IUD, upa
possibility of impeding - POPs --> plan B or next choice
implantation by primary - COCs --> yuzpe method
or 2ndary MOA?
- uses everyday birth control pills as EC
- combine pills in a specific order = estrogen &
yuzpe method progestin in pills work to prevent an unplanned preg
- this is most effective when used within 72 hrs after
sex
there is currently no ED - disturb an already implanted preg
that will
- most likely affects tubal transport of sperm or ova
POPs EC MOA
- not implantation
Tx with COCs within _______ 120 hrs
of unprotected sex 60-75%
decreases risk of preg by
_______
POPs EC reduces risk of 89%
preg by ______
which EC method is most - copper IUD
effective
EC copper IUD, POPs, 5 days
COCs can be used up to
______ after sex
- allows the ability to see the consequence
(unintended preg) of imperfect use
- unintended preg are higher in # in all categories of
perfect & typical use typical use --> compared to % of women currently
failure rates preg in categories of perfect use where # are lower
- giving example to a correlation of likelihood of
unintended preg & typical or imperfect use of
methods