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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
The exact location of the Amnion
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.
Fertilisation occurs in vagina.
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 placenta
Give Reasons
The full-grown human embryo respires but does not breathe.
Name the Following
The expulsion of the fetus from the body of the mother.
Complete the following sentences with appropriate word:
The period of complete development of the fetus until birth is termed ______.
Mention any two functions of the human foetal placenta.
Does the foetus inside the mother's uterus breathe?
Which of the following cannot pass readily through the placenta to the foetus?
