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प्रश्न
Explain how the uterus and placenta provide necessary conditions for proper growth and development of the embryo after implantation?
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उत्तर
- The lining of the uterus thickens and is richly supplied with blood to nourish the growing embryo.
- The embryo gets nutrition from the mother’s blood with the help of placenta. It is embedded in the uterine wall.
- It contains villi on the embryo’s side of the tissue. On the mother’s side are blood spaces, which surround the villi.
- This provides a large surface area for glucose and oxygen to pass from the mother to the embryo. The developing embryo will also generate waste substances which can be removed by transferring them into the mother’s blood through the placenta.
- The child is born as a result of rhythmic contractions of the muscles in the uterus.
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संबंधित प्रश्न
State the Location:
Ovary
The largest cell in the human body of a female is ______.
Estrogen is secreted by ______
Which stage is followed after the secondary follicle stage?
Bartholin’s glands are situated ______.
Read the following and answer from given below:
Oogenesis is the process of the formation of an ovum in the ovaries. It consists of three phases: multiplication, growth, and maturation. Oogenesis is controlled by hormones GnRH, LH, FSH. GnRH secreted by the hypothalamus stimulates the anterior lobe of the pituitary gland to secrete LH and FSH.
Which hormone induces the rupture of the mature Graafian follicle?
What are various ways to avoid pregnancy? Elaborate any one method.
In absence of fertilization, corpus luteum degenerates into ______.
The ______ is also called the womb.
Rewrite the terms in the correct order so as to be in a logical sequence.
Sperm duct, coitus, sperm, vagina, urethra.
