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प्रश्न
Name the following:
Two hormones secreted from placenta.
Name 2 hormones secreted by placenta.
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उत्तर
Estrogens and progesterone.
संबंधित प्रश्न
What is the significance of amniotic fluid?
Name the following:
The fluid surrounding the developing embryo
Name the following:
The membrane which protects the foetus and encloses a fluid
Give appropriate terms for the following:
Rupture of follicle and release of ovum from the ovary.
State whether the following statements are TRUE (T) or FALSE (F):
Rewrite of the wrong statements by correcting only one word either at the beginning or at the end of the sentences.
Gestation period in humans is about 380 days.
Differentiate between:
Amnion and allantois
Describe the functions of placenta
What changes occur at the time of birth?
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.
Explain the term Fetus
Name the Following
A hollow pear-shaped muscular organ that holds, nourishes and protects the fetus.
Write the functional activity of the following structure:
Amnion
Which of the following reproductive structures is responsible for secretion of hCG?
How are carbon dioxide and urea, excreted by the foetus, removed?
Which of the following cannot pass readily through the placenta to the foetus?
Distinguish between the following pair:
Placenta and umbilical cord
Which component of the placenta originates from the trophoblast of the blastocyst and is also called the chorion frondosum?
The placenta is described as a temporary structural and functional connection between which two circulations?
