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प्रश्न
What is placenta?
उत्तर १
The placenta is an organ attached to the lining of the womb during pregnancy. The placenta is composed of both maternal tissue and tissue derived from the embryo. It contains blood spaces on the mother’s side and villi on the embryo’s side
उत्तर २
Placenta is a special umbilical cord develops in the fourth week which establishes an intimate connection between the foetal membrane and he uterine wall.
संबंधित प्रश्न
Explain the process of development in human beings.
Describe placenta structure.
Explain how the embryo gets nourishment inside the mother’s body.
fill in the blanks with suitable functions: Seminiferous Tubule and _____
Give technical terms for Thin walled sac of skin which covers the testes
What is ovulation? How often does it happen in human females?
Explain how the transmission of virus and bacteria diseases be prevented?
Give the function of the following:
Uterus
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| (i) Acrosome
(ii) Ovulation (iii) Sperm (iv) Menopause (v) Implantation (vi) Fertilization (vii) Contraception in males |
(a) Male gamete
(b) Oviduct (c) Uterus (d) Spermatozoa (e) Progesterone (f) Stoppage of the menstrual cycle (g) Sudden change in genes |
Choose the Odd One Out:
