Hormone Changes During Pregnancy

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hCG
Produced by the trophoblast. Supports the corpus luteum to continue releasing oestrogen and progesterone therefore preventing menstruation.
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*Trophoblast
Layer of tissue on the outside of the blastula which supplies embryo with nourishment and later forms placenta
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*Corpus Luteum
Necessary because the placenta can't produce oestrogen or produce enough progesterone.
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Oestrogen Pt 1
Produced by the corpus luteum for 1st 3 months. Therefore after by the placenta. Stimulates uterine growth, prepares the uterus for labour, promotes breast duct development.
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Oestrogen Pt 2
Increases prostaglandin production; softens the cervix. Oestrogen is made from the precursor DHEA in the placenta.
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Progesterone
Made in the placenta from cholesterol. Relaxes uterus, promotes cervical plug, promotes milk gland development and inhibits the ability to self contract.
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Other cards in this set

Card 2

Front

Layer of tissue on the outside of the blastula which supplies embryo with nourishment and later forms placenta

Back

*Trophoblast

Card 3

Front

Necessary because the placenta can't produce oestrogen or produce enough progesterone.

Back

Preview of the back of card 3

Card 4

Front

Produced by the corpus luteum for 1st 3 months. Therefore after by the placenta. Stimulates uterine growth, prepares the uterus for labour, promotes breast duct development.

Back

Preview of the back of card 4

Card 5

Front

Increases prostaglandin production; softens the cervix. Oestrogen is made from the precursor DHEA in the placenta.

Back

Preview of the back of card 5
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