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प्रश्न
How does a developing embryo get its nourishment inside the mother's body?
टिप्पणी लिखिए
उत्तर
The placenta allows the exchange of food materials, diffusion of oxygen, excretion of nitrogenous wastes, and elimination of carbon-di-oxide. A cord, containing blood vessels that connect the placenta with the foetus is called the umbilical cord.
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Fertilization to Foetal Development
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संबंधित प्रश्न
Fertilization is ______ in humans.
______ is the first secretion from the mammary gland after childbirth.
Prolactin is a hormone produced by ______.
Match the following terms with their respective meanings.
| a) Parturition | - | 1) The duration between pregnancy and birth |
| b) Gestation | - | 2) Attachment of zygote to the endometrium |
| c) Ovulation | - | 3) Delivery of baby from a uterus |
| d) Implantation | - | 4) Release of an egg from Graafian follicle |
What is colostrum? How is milk production hormonally regulated?
Name the hormone responsible for the vigorous contractions of the uterine muscles.
LH is secreted by the posterior pituitary.
