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Rajshree Chatterjee

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  1. Asked: March 29, 2024In: NCERT Books

    Oral contraceptive pills prevent

    Rajshree Chatterjee
    Added an answer on March 30, 2024 at 3:38 am

    Oral contraceptive pills are hormonal medications designed to prevent pregnancy by primarily inhibiting ovulation, the release of an egg from the ovary. These pills contain synthetic hormones, typically estrogen and progestin, which regulate the menstrual cycle and suppress the natural hormonal flucRead more

    Oral contraceptive pills are hormonal medications designed to prevent pregnancy by primarily inhibiting ovulation, the release of an egg from the ovary. These pills contain synthetic hormones, typically estrogen and progestin, which regulate the menstrual cycle and suppress the natural hormonal fluctuations that lead to ovulation. By preventing ovulation, oral contraceptive pills ensure that there is no egg available for fertilization by sperm, thereby significantly reducing the likelihood of pregnancy.
    Additionally, these pills may also cause changes in the cervical mucus, making it thicker and more hostile to sperm penetration, and altering the uterine lining, which may further hinder fertilization or implantation of a fertilized egg. Through their multifaceted mechanisms of action, oral contraceptive pills offer a highly effective method of birth control for individuals seeking to prevent unintended pregnancies, providing them with greater control over their reproductive health.

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  2. Asked: March 29, 2024In: NCERT Books

    Which of the following organs supplies food for the development of the fetus?

    Rajshree Chatterjee
    Added an answer on March 30, 2024 at 3:38 am

    The uterus, a crucial component of the female reproductive system, serves as the nurturing environment where the fetus develops during pregnancy. Through the process of implantation, the uterine lining establishes a rich blood supply, providing essential nutrients and oxygen to support fetal growthRead more

    The uterus, a crucial component of the female reproductive system, serves as the nurturing environment where the fetus develops during pregnancy. Through the process of implantation, the uterine lining establishes a rich blood supply, providing essential nutrients and oxygen to support fetal growth and development. The uterine environment also facilitates the exchange of metabolic waste products from the fetus, ensuring the removal of toxins and maintaining optimal conditions for fetal well-being.
    Additionally, the uterus undergoes remarkable physiological changes during pregnancy, including enlargement and muscular contractions, to accommodate the expanding fetus and facilitate labor and delivery. Overall, the uterus plays a central role in providing the necessary support and nourishment for the developing fetus, fostering its growth and ensuring a successful pregnancy outcome.

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  3. Asked: March 29, 2024In: NCERT Books

    What is used to know the development of the baby in the uterus?

    Rajshree Chatterjee
    Added an answer on March 30, 2024 at 3:38 am

    Ultrasound, a widely utilized non-invasive imaging technology, plays a pivotal role in monitoring the intricate developmental stages of the fetus within the uterus during pregnancy. By emitting high-frequency sound waves into the body, ultrasound produces real-time visual representations of the deveRead more

    Ultrasound, a widely utilized non-invasive imaging technology, plays a pivotal role in monitoring the intricate developmental stages of the fetus within the uterus during pregnancy. By emitting high-frequency sound waves into the body, ultrasound produces real-time visual representations of the developing baby, allowing healthcare professionals to assess various aspects of fetal growth and well-being. This imaging modality enables visualization of key anatomical structures, such as the fetus’s head, limbs, heart, and internal organs.
    Additionally, ultrasound facilitates the measurement of fetal size and growth parameters, including estimated fetal weight and gestational age. Moreover, it aids in the detection of potential abnormalities or complications, such as congenital anomalies or placental issues, which may require further evaluation or management. Through regular ultrasound examinations throughout pregnancy, expectant parents can gain valuable insights into their baby’s progress, fostering a deeper understanding and connection with the developing life within the womb.

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  4. Asked: March 29, 2024In: NCERT Books

    The union of two gametes is called

    Rajshree Chatterjee
    Added an answer on March 30, 2024 at 3:38 am

    Fertilization, the pivotal event in sexual reproduction, denotes the fusion of two haploid gametes—a sperm from the male parent and an egg from the female parent—resulting in the formation of a diploid zygote. This process typically occurs in the reproductive tract of the female, such as the fallopiRead more

    Fertilization, the pivotal event in sexual reproduction, denotes the fusion of two haploid gametes—a sperm from the male parent and an egg from the female parent—resulting in the formation of a diploid zygote. This process typically occurs in the reproductive tract of the female, such as the fallopian tube. Upon successful fertilization, the zygote undergoes a series of rapid cell divisions, forming an embryo, which eventually implants into the uterine wall for further development.

    Fertilization initiates the genetic combination of paternal and maternal DNA, ensuring genetic diversity in offspring. It also triggers molecular changes in the egg, preventing the entry of additional sperm cells to safeguard genomic integrity. Fertilization represents the culmination of a complex sequence of events involving gamete production, release, transport, and recognition. Its successful completion is essential for the continuation of the species, marking the commencement of embryonic development and the journey toward the birth of a new individual.

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  5. Asked: March 29, 2024In: NCERT Books

    In which fluid does the human fetus float in the uterus?

    Rajshree Chatterjee
    Added an answer on March 30, 2024 at 3:38 am

    During pregnancy, the human fetus is suspended within the uterus in a nurturing environment characterized by the presence of amniotic fluid. This fluid, which is contained within the amniotic sac, serves multiple crucial functions to support fetal development. Firstly, it acts as a cushion, providinRead more

    During pregnancy, the human fetus is suspended within the uterus in a nurturing environment characterized by the presence of amniotic fluid. This fluid, which is contained within the amniotic sac, serves multiple crucial functions to support fetal development. Firstly, it acts as a cushion, providing a protective barrier against external shocks or impacts, thereby safeguarding the growing fetus from potential harm.

    Additionally, the amniotic fluid allows for buoyancy, enabling the fetus to move freely within the womb and assume various positions essential for proper development of muscles and bones. Moreover, the fluid facilitates the exchange of nutrients and oxygen from the mother’s bloodstream to the fetus while removing metabolic waste products produced by the fetus. Furthermore, the amniotic fluid helps regulate the temperature around the fetus, ensuring a stable and optimal environment for growth. Overall, amniotic fluid plays a vital role in nurturing and sustaining the fetus throughout the gestational period.

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