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17 terms

Pregnancy and Birth

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syncitiotrophoblast
At the site of implantation, this multi-nucleate mass invates the endometrium
prostaglandins
These hormones increase vascularization of the endometrium
Human Chorionic Gonadotrophin
This hormone produced by the blastocyst and early placenta maintains the corpus luteum
estrogen
This is produced by the placenta, and stimulates myometrial and mammary gland development
placenta
This is the source of estrogen production during late pregnancy
progesterone
This hormone inhibits follicular development and spontaneous uterine contractions
placenta
This is the source of progesterone production during late pregnancy
Human Placental Lactogen
This hormone lowers maternal glucose use, and prepares the mammary gland for lactation
relaxin
This hormone softens the cervix and loosens connective tissue
6-8
Continuing pregnancy is dependent on the ovary until this many weeks gestation
estriol
This is the highest-produced estrogen during pregnancy
oxytocin
This hormone positively feeds-back to increase uterine contractions during labour
estradiol and progesterone
These hormones inhibit prolactin action during pregnancy
dopamine
This hormone tonically inhibits prolactin production and release
7
The fetus is sexually bipotential until this many weeks gestation
Mullerian ducts
In the absence of male hormones, these develop into the vagina, uterus and Fallopian tubes
Wolffian ducts
In the male, these develop into the vas deferens