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Implantation is the process where
- a)The blastocyst becomes embedded in the endometrium.
- b)The sperm nuclei fuse with the egg nuclei
- c)Loss of the lining of endometrium takes place
- d)The gastrula becomes embedded in the endometrium
- e)None of the above
Correct answer is option 'A'. Can you explain this answer?
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Implantation is the process wherea)The blastocyst becomes embedded in ...
Implantation is a critical step in the process of human reproduction. It occurs after fertilization, when the developing embryo, in the form of a blastocyst, attaches itself to the lining of the uterus, known as the endometrium.
After fertilization, the zygote undergoes multiple cell divisions and forms a hollow ball of cells called a blastocyst. The blastocyst then travels through the fallopian tube and reaches the uterus. During implantation, the blastocyst attaches itself to the thickened and enriched endometrial lining of the uterus.
Implantation involves several complex processes. The blastocyst first makes contact with the endometrium and then burrows into it, eventually becoming embedded in the endometrial tissue. This establishes a connection between the developing embryo and the maternal blood supply, which is crucial for the exchange of nutrients, oxygen, and waste products.
Implantation typically occurs around 6 to 7 days after fertilization, and it marks the beginning of pregnancy. Following successful implantation, the endometrium undergoes further changes to support the growth and development of the embryo, leading to the formation of the placenta.
The other options listed are not accurate descriptions of implantation. B. The fusion of sperm nuclei with egg nuclei is known as fertilization, which occurs prior to implantation. C. Loss of the lining of the endometrium is associated with menstruation, not implantation. D. The gastrula stage refers to a later developmental stage, after implantation has already taken place.
Therefore, the correct answer is A. The blastocyst becomes embedded in the endometrium. Implantation is the crucial process in which the developing embryo attaches itself to the uterine lining to establish pregnancy.
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Implantation is the process wherea)The blastocyst becomes embedded in the endometrium.b)The sperm nuclei fuse with the egg nucleic)Loss of the lining of endometrium takes placed)The gastrula becomes embedded in the endometriume)None of the aboveCorrect answer is option 'A'. Can you explain this answer? for MCAT 2025 is part of MCAT preparation. The Question and answers have been prepared according to the MCAT exam syllabus. Information about Implantation is the process wherea)The blastocyst becomes embedded in the endometrium.b)The sperm nuclei fuse with the egg nucleic)Loss of the lining of endometrium takes placed)The gastrula becomes embedded in the endometriume)None of the aboveCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for MCAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Implantation is the process wherea)The blastocyst becomes embedded in the endometrium.b)The sperm nuclei fuse with the egg nucleic)Loss of the lining of endometrium takes placed)The gastrula becomes embedded in the endometriume)None of the aboveCorrect answer is option 'A'. Can you explain this answer?.
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