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Home Q & A Board Science-Related Homework Help High School Level Science
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i.luv.ed i.luv.ed
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12 years ago
a) progesterone
b) luteinizing hormone
c) estrogen
d. Folicle stimulating hormone

2.Decribe the formation of the plancenta and explain its main functions
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#1
12 years ago
First one should be (A): Decrease in the level of the hormone pregesterone, may cause uterine changes.
Biology!
wrote...
#2
Staff Member
12 years ago
Quote from: howard (12 years ago)
First one should be (A): Decrease in the level of the hormone pregesterone, may cause uterine changes.

Yes! During pregnancy, progesterone is present in large concentrations. As the placenta ages, the levels decrease and this may cause an increase in prostaglandin, which will cause uterine contractions.
- Master of Science in Biology
- Bachelor of Science
wrote...
#3
Staff Member
12 years ago
Quote from: i.luv.ed (12 years ago)
2.Decribe the formation of the plancenta and explain its main functions

The placenta is formed from the region of the chorion still in contact with the uterine wall.  It functions to deliver nutrients to the developing fetus and carry wastes away from the developing fetus.

Please mark as solved!
- Master of Science in Biology
- Bachelor of Science
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#4
Educator
8 years ago
Animation - Positive and Negative Feedback
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