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प्रश्न
Distinguish between the following pair:
Placenta and umbilical cord
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उत्तर
Placenta: The Placenta is the intimate connection established between the foetal membranes and uterine wall, permitting the diffusion of nourishment from the mother's blood to that of the growing foetus and the disposal of wastes from the blood of the foetus to that of the mother.
Umbilical cord: A cord containing blood vessels connects the placenta with the foetus; this is called the umbilical cord.
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संबंधित प्रश्न
The exact location of the Amnion
State whether the following statements are TRUE (T) or FALSE (F):
Rewrite the wrong statement by correcting only one word either at the beginning or at the end of the sentence.
Uterus is also known as birth canal.
State whether the following statements are TRUE (T) or FALSE (F):
Rewrite the wrong statement by correcting only one word either at the beginning or at the end of the sentence.
Nutrition and oxygen diffuse from the mother’s blood into the foetus’s blood through amnion.
Describe the functions of Amnion
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’?
Complete the following sentences with appropriate word:
The umbilical cord connects _______
Write the functional activity of the following structure:
Placenta
Mention any two functions of the human foetal placenta.
Name the following:
Two hormones secreted from placenta.
Amniotic fluid serves to provide oxygen to the foetus.
