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प्रश्न
Given below is the name of certain stage/substance related to reproduction and found in human body. Answer the questions related to it.
Placenta
- What are the two sources that form placenta?
- Name any two main substances which pass from foetus to mother through placenta.
- Name any two hormones it produces.
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उत्तर
- The placenta is formed of two sets of minute finger-like projections, the villi. One set of villi are given out by the uterine wall and the other set by an extension (allantois) from the embryo.
- Carbon dioxide and urea.
- Oestrogens and progesterone.
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संबंधित प्रश्न
What is the significance of amniotic fluid?
Name the following:
The canal through which the testes descend into the scrotum just before birth in human male child.
State whether the following statements are TRUE (T) or FALSE (F):
Rewrite the wrong statement by correcting only one word either at the beginning or at the end of the sentence.
Uterus is also known as birth canal.
Describe the functions of Amnion
Describe briefly the ways how a mammalian embryo is protected
Name the Following
How the embryo inside the uterus is protected from jerks or mechanical shocks.
All are functions of placenta, EXCEPT ______.
How are carbon dioxide and urea, excreted by the foetus, removed?
Does the foetus inside the mother's uterus breathe?
Heart and blood vessels have been formed by the end of five weeks of pregnancy.
