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प्रश्न
Write one sentence using the following term pertaining to reproduction in humans.
Placenta
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उत्तर
The placenta is the blood vessel-containing cord that connects the embryo to the mother's uterine wall.
संबंधित प्रश्न
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
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’?
The diagram given below shows an embryo in the uterus of mammal. Label the parts indicated.
Name the Following
The expulsion of the fetus from the body of the mother.
Complete the following sentences with appropriate word:
The embryo inside the uterus is protected from jerks or mechanical shocks by ________
During pregnancy, which hormones are secreted by the placenta?
Assertion (A): The foetus respires but does not breathe.
Reason (R): The maternal blood supplies oxygen to the foetus through placenta.
