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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
Differentiate between:
Impotency and sterility
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
What changes occur at the time of birth?
Differentiate
Uterus and Urethra.
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’?
The diagram given below shows an embryo in the uterus of mammal. Label the parts indicated.
All are functions of placenta, EXCEPT ______.
Which of the following hormones is produced by ovary?
Which of the following cannot pass readily through the placenta to the foetus?
Distinguish between the following pair:
Placenta and umbilical cord
