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प्रश्न
Differentiate between:
Amnion and allantois
उत्तर
Amnion is a sac which develops around the embryo whereas allantois is an extension from the embryo which forms villi of placenta.
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संबंधित प्रश्न
Give appropriate biological or technical terms for the following :
The fluid which surrounds the foetus
Name the following:
The body part in which the embryo develops.
Given below is the name of certain stage/substance related to reproduction and found in human body. Answer the questions related to it.
Implantation.
- The development stage that undergoes this process.
- The approximate time after fertilisation, when it occurs.
The diagram given alongside is that of a developing human foetus in the womb. Study the same and answer the questions that follows:
Name the parts ‘1’ to ‘5’ indicated by guidelines
The circulatory system of the fetus and that of the mother are never connected directly. What are the advantages?
Describe briefly the ways how a mammalian embryo is nourished
Give Reasons
The full-grown human embryo respires but does not breathe.
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.
Name the Following
A hollow pear-shaped muscular organ that holds, nourishes and protects the fetus.
Amniotic fluid serves to provide oxygen to the foetus.
