Preconception And Pregnancy Flashcards
(84 cards)
How long to build back nutrition stores after pregnancy
1.5 yrs
Number of babies born in US that are WIC babies
54%
Why does preconception nutrition matter?
- damage to body takes time to correct
- folic acid, NTD - damage occurs in first few weeks often before the woman knows she is pregnant
- body relies on nutrient stores and you can never eat enough during pregnancy to get needed nutrients - don’t absorb if you eat it all at once
- poor nutrition may prevent pregnancy
- mom’s body will ensure her survival, not baby’s
- body will terminate pregnancy if not enough nutrients
Number of follicles that mature each month
6-14
Hormones that the follicles produce to tell the endometrium to thicken
Estrogen and progesterone
Why the endometrium thickens
Store glycogen to get ready for egg to implant
What happens in first 14 days of menstrual cycle
Follicles continue to mature, grow normally, then one follicle moves to edge of ovary and spits out an ovum
What happens to the one follicle after ovulation
Becomes corpus luteum, keeps producing estrogen and progesterone to thicken endometrium
How long for egg to implant once fertilized
8-10 days
Hormone that tells corpus luteum to keep making estrogen and progesterone - if not sent then corpus luteum dies
hCG - human chorionic gonadotropin
What happens to endometrium if no fertilization and thus no hCG
Menses
First 14 days of menstrual cycle called
Follicular phase
Last 14 days of menstrual cycle called
Luteal phase
Why corpus luteum is yellow
Contains cholesterol
What corpus luteum is called after it dies
Corpus albicans (white body)
After fertilization, when does the corpus luteum involute (go away)
When the placenta gets big enough to take over controlling the hormones estrogen and progesterone (after about 2 months)
What controls the menstrual cycle
Hypothalamus and pituitary
What hormone starts menstrual cycle, where produced, and what does it do
GnRH - gonadotropin releasing hormone - made by hypothalamus - goes to the pituitary and tells it to release FSH and LH
What is FSH and what does it do
Follicle stimulating hormone - released from the pituitary, goe to the ovaries and tells them to mature follicles and tells the follicles to make estrogen
What is LH and what does it do
Luteinizing hormone - produced by pituitary, tells maturing follicle to make progesterone
At 14 days there is an LH surge that tells follicle to spit out egg
Role of GnRH, FSH and LH in men
Go to testes and tells sperm to make testosterone and other androgens
How long for sperm to mature
70-80 days
Where does sperm mature
Testes
Where does sperm go after mature
Epididymis