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प्रश्न
List the substances which the foetus receives from the mother through placenta.
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उत्तर
- Oxygen: The placenta exchanges oxygen from the mother's bloodstream to the foetal bloodstream.
- Nutrients/Food: The placenta transfers essential nutrients, such as glucose, from the mother to the foetus to promote their growth.
- Antibodies: The placenta transfers antibodies from the mother to the foetus, giving the baby immunity early in life.
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संबंधित प्रश्न
What is the significance of amniotic fluid?
Name the following:
The membrane which protects the foetus and encloses a fluid
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.
Differentiate between:
Amnion and allantois
Describe the functions of Amnion
Name the following:
The structure which connects the placenta and the foetus.
The diagram given below is that of a developing human foetus in the womb. Study the same and then answer the questions that follow:
- Name the parts '1' to '5' indicated by guidelines.
- What term is given to the period of development of the foetus in the womb?
- How many days does the foetus take to be fully developed?
- Mention two functions of the parts labelled ‘2’ other than its endocrine function.
- Name the hormone (anyone) produced by the part labelled ‘2’.
- What is the function of the part marked ‘3’?
Give Technical Term:
Name a membrane that surrounds the fetus and secretes a protective fluid.
Assertion (A): The foetus respires but does not breathe.
Reason (R): The maternal blood supplies oxygen to the foetus through placenta.
Heart and blood vessels have been formed by the end of five weeks of pregnancy.
