5.9 Pregnancy And Lactation Flashcards
Hormone that stimulates milk ejection
Oxytocin
Hormone that stimulates milk secretion
Prolactin
Increasing levels of this hormone is responsible for the progression of parturition
Oxytocin
Hormone that makes glucose available for fetus
HPL
Source of estrogen and progesterone during last trimester of pregnancy
Placenta
Fetal organ that produces DHEA to be converted to estrogen
Adrenal cortex
Responsible for prevention of entry of more than one sperm in oocyte
Cortical reaction
Contact of sperm head and zona pellucida is made possible by this reaction
Acrosomal reaction
True or false.
Implantation of zygote involves infiltration of myometrium by synctiotrophoblasts.
False. Infiltration of myometrium does not occur only infiltration of endometrium.
This activates exocytosis of cortical granules
Ca signaling cascade
High levels of this hormone is responsible for morning sickness
hCG
Luteal placental shift happens on the _th week of pregnancy
8th week of pregnancy
Hormone Responsible for myometrial quiescence
Progesterone
Hormone Responsible for cervical rigidity
Progesterone
Hormone responsible for cervical ripening
Estrogen
Both hormones that stimulate breast growth and development
Progesterone and estrogen
Ovulation is suppressed when there is lactation because
Prolactin inhibits GnRH secretion which consequently inhibits LH and FSH secretion
Hormone that inhibits prolactin
Dopamine
Explains suppression of lactation during pregnancy
High progesterone and estrogen
Hormone that prevent luteolysis
hCG
Apposition occurs in the
Crypts
It is when the embryonic pole attaches to the uterine endometrium
Adhesion
Decidua secretes these factors which moderate activity of hydrologic enzymes. What are these factors?
Tissue inhibitors of metalloproteinases (TIMPs)
