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प्रश्न
How is Placenta formed? What are its functions?
उत्तर
It is formed by the union of uterine endometrial tissue, chorion, and allantois (embryonic tissue). It is attached to the wall of the uterus and through it, the exchange of nutrients, hormones, respiratory gases, and urea occurs between the fetal and maternal circulation.
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संबंधित प्रश्न
What is the significance of amniotic fluid?
The exact location of the Amnion
Give appropriate biological or technical terms for the following :
The fluid which surrounds the foetus
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.
Nutrition and oxygen diffuse from the mother’s blood into the foetus’s blood through amnion.
Describe briefly the ways how a mammalian embryo is nourished
Differentiate
Amnion and Chorion.
Study the diagram given below and then answer the questions that follow:
(i) Name the parts labeled 1 and 2. State the function of each part.
(ii) State any one function of the amniotic fluid.
(iii) What is the role of the umbilical cord in the development of the fetus?
(iv) Name the part in the diagram which is endocrine in nature.
Give Technical Term:
The part in the uterus which is concerned with the supply of nutrition from the mother to the fetus.
Complete the following sentences with appropriate word:
The period of complete development of the fetus until birth is termed ______.
Heart and blood vessels have been formed by the end of five weeks of pregnancy.
