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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
The circulatory system of the fetus and that of the mother are never connected directly. What are the advantages?
Study the diagram given below and then answer the questions that follow:
(i) Name the parts labeled 1 and 2. State the function of each part.
(ii) State any one function of the amniotic fluid.
(iii) What is the role of the umbilical cord in the development of the fetus?
(iv) Name the part in the diagram which is endocrine in nature.
Name the Following
The expulsion of the fetus from the body of the mother.
Give Technical Term:
The period of intrauterine development of the embryo.
Complete the following sentences with appropriate word:
The placenta is ________permeable
Complete the following sentences with appropriate word:
The expulsion of the fetus from the body to the mother in a human female is called __________.
Complete the following sentences with appropriate word:
The embryo inside the uterus is protected from jerks or mechanical shocks by ________
Mention any two functions of the human foetal placenta.
At what stage of development does implantation occur post-fertilisation?
