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9 Cards in this Set
- Front
- Back
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What is one of the early functions of the placenta?
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hPLan endocrine gland that produces 4 hormones necessary to maintain pregnancy/
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hCG - human chorionic gonadotropin is the basis for pregnancy tests and can be detected in the maternal serum by __ to __days after conception.
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8-10
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When does hCG reach its peak level?
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50-70 days.
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what is the purpose of hCG?
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preserve function of the ovarian corpus luteum and ensure a constant supply of estrogen and progesterone.
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hPL - Human placental lactogen is another protein hormone produced by the placenta. What are its functions? (they are similar to the human pituitary growth hormone.
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stimulates maternal metabolism to supply needed nutrients.
Increases resistance to insulin. Facilitates glucose transport across the placenta. Stimulates breast development. |
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After 10 weeks, the placenta begins to produce what hormone with what effect?
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progesterone so the corpus luteum is no longer needed.
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What is progesterone's purpose?
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maintains endometrium
stimulates maternal metabolism decreases contractility of uterus stimulates development of breast alveoli or acini cells. |
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By the 7th week the placenta is producing most of what hormone?
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estrogen (estriol)
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What is the purpose of estrogen?
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stimulate uterine growth and uteral placenta blood flow.
stimulates myometrial contractility later in pregnancy. proliferates breast glandular tissue. |
