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प्रश्न
Mention three functions of the placenta.
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उत्तर
- It connects the fetus with the uterus of mother.
- It helps in the exchange of nutrients, gases and waste products between mother and the foetus.
- It acts as an endocrine gland and secretes chorionic gonadotropin hormone which maintains the pregnancy.
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संबंधित प्रश्न
Give an appropriate biological or technical term for the following:
The fluid which surrounds the foetus.
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.
Implantation.
- The development stage that undergoes this process.
- The approximate time after fertilisation, when it occurs.
The diagram given below shows an embryo in the uterus of mammal. Label the parts indicated.
Explain the term Fetus
Give Technical Term:
Name a membrane that surrounds the fetus and secretes a protective fluid.
Complete the following sentences with appropriate word:
The umbilical cord connects _______
Write the functional activity of the following structure:
Uterus
In human beings, the placenta is formed by ______.
Assertion (A): The foetus respires but does not breathe.
Reason (R): The maternal blood supplies oxygen to the foetus through placenta.
