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प्रश्न
Describe the development of a fertilized ovum upto implantation.
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उत्तर
Development of fertilized ovum upto implantation:
Fertilisation results in the formation of a diploid zygote. The zygote formed after fertilization undergoes mitosis. Mitosis takes place in the isthmus of the oviduct or the fallopian tube. This process is known as cleavage. The cleavage results in the formation of 2, 4, 8, 16 daughter cells that are called blastomeres. The 8−16 blastomeres is called a morula, which continues to divide to form the blastocyst. The morula moves further into the uterus. The cells in the blastocyst are arranged into an outer trophoblast and an inner cell mass. The trophoblast gets attached to the uterine endometrium, and the process is called implantation. This leads to pregnancy.
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संबंधित प्रश्न
Complete the following sentences with appropriate word:
The female equivalent of the penis is the _______.
Multiple Choice Question:
Corpus luteum in mammals occurs in
Estrogen is secreted by ______
Name the part of the human female reproductive system where the following occurs.
Implantation
What is the other term used for fallopian tube?
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If the peak of Hormone A does not appear in the study for Subject 1, which of the following statement is true?
With a suitable diagram, describe the organisation of mammary gland.
Rewrite the terms in the correct order so as to be in a logical sequence.
Sperm duct, coitus, sperm, vagina, urethra.
The figure given below is the human female reproductive system. Study the same and answer the following questions.
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- Label the guidelines 1 to 6 shown in the figure.
- What is the normal gestation period in human?
- Where are the sperms released during coitus?
- Write two important functions of part 2.
- Mention the technical term for the fixing of developing zygote to the uterine wall.
The ______ is also called the womb.
