Which of the following events does NOT occur in preparation for pregnancy? The Secretory phase is due to the growth of endometrial glans & secretion of glycogen. After fertilization progesterone & estrogen begin to decline. The preparatory phase peaks at 1 week after ovulation. Without fertilization menstruation occurs. Progesterone & Estrogen cause thickening of the endometrium.

Q: After fertilization the blastocyst develops three germ layers. Which germ layer is the innermost…

A: In the human embryo , after about three days of fertilisation,the zygote forms a solid mass of cells…

Q: A woman hoping to have a child took a home pregnancy test the day her period was due. Explain how…

A: If a woman hoping to have a child takes a home pregnancy test the day her period is due & the…

Q: Explain how the structure of the placenta prevents mixing of fetal and maternal blood while allowing…

A: -First to understand placenta .  Placenta -- It is composed of fetal part which includes the…

Q: Describe the physiological changes that occur in a pregnantwoman’s circulatory system.

A: Pregnancy is a the result of a successful fertilization that leads to the development of the zygote…

Q: Describe the developmental events of the second and third trimester

A: Introduction: A normal pregnancy is divided into trimesters- first, second, and third.  The first…

Q: Outline the role of the fetal hypothalamic-pituitary axis in parturition and given reasons why this…

A: The HPA axis is the main physiological system that mediates the body's stress response. It plays a…

Q: Name the extraembryonic membrane that gives rise toeach of the following: umbilical blood vessels,…

A: Embryology is the study of development and growth of fertilized eggs(zygote) into mature embryo that…

Q: define organogenesis and indicate the important roles of the three primary germ layers in this…

A: Gastrulation is the process of early embryonic development where blastula transforms to form three…

Q: What kinds of studies and information are required to determine whether a man’s exposure to a…

A: The teratogens are the naturally occurring or chemical compounds that have the ability to produce…

Q: Why is hCG secretion important during the first trimester

A: A member of the glycoprotein hormone family, the human chorionic gonadotropin hormone (hCG) is a…

Q: The period from birth to the end of the first month is known as the ----- period?

A: Introduction: The usual pregnancy (gestation) lasts 40 weeks, even though the unborn child is only…

Q: Explain the events associated with the three stages of labor.

A: The term ‘labor’ which is also known as ‘childbirth’ or ‘delivery,’ is the last stage that marks an…

Q: Describe the transit of breast milk from lactocytes to nipple pores.

A: Lactation refers to synthesizing and secreting the milk from the mammary glands of the breast of a…

Q: What kind of hormone imbalances can lead to miscarriages during pregnancy?

A: Miscarriage means loss of a pregnancy during the first 20 weeks. Signs and symptoms of miscarriage…

Q: What anatomical feature permits coordinated contractions of the myometrium?

A: Myometrium is referred to as the middle region of the uterine wall. It is formed by the supporting…

Q: Describe the roles of LH and hCG in maintaining pregnancy during the first trimeste

A: Introduction: Several vital functions are carried out by the female reproductive system. Th ova…

Q: Describe what occurs during cleavage and the product of thisdevelopmental process.

A: Fertilization can be defined as the process which includes the fusion of sperm which is a male…

Q: Which structures are responsible for maintaining levels of estrogen in during pregnancy?

A: In spite of the fact that progesterone dominates all through pregnancy, estrogen is likewise vital.…

Q: What is the role of the HCG hormone in pregnancy?

A: HCG or Human Chorionic Gonadotropin hormone is one of the crucial hormones in pregnancy. Here we…

Q: Describe the role of hormones in birth.

A: Hormones are defined as the molecule involved in the cell signaling in the body. in multicellular…

Q: By what means does the uterus greatly increase in size and weight during pregnancy?

A: The uterus is the organ of the body that facilitates the development of the fetus. The size and…

Q: During the process of labor, what event occurs when the woman has her “water break”?

A: Labor is the process of expelling the fetus out of the uterus. Labor consists of three stages. The…

Q: What happens to progesterone and estrogen during the second and third trimesters of pregnancy?

A: The body undergoes a number of changes throughout pregnancy. The primary pregnancy hormones are…

Q: what is the purpose of calcium ion in fertilization?

A: * Fertilisation is an generative fertilisation fusion of gametes gives rise to a new individual…

Q: The childbirth process is controlled by a positive feedback mechanism. Explain how the mechanism…

A: Hormone are secreted by the endocrine glands. They are carried to their target by blood.  They…

Q: After fertilization a developing embryos goes through several changes. At about 2-3 days, what is…

A: During fertilization the haploid gametes, that is, sperm from a male and secondary oocyte from…

Q: What would happen if human chorionic gonadotropin levels did not rise adequately during pregnancy?

A: Hormones are chemical messengers secreted by the glands present in the body. They are responsible…

Q: Describe the process of implantation and placenta formation

A: Fertilization is the mechanism of fusion of sperm and an egg. This represents the first stage of…

Q: What is the physiological benefit of incorporatingshunts into the fetal circulatory system?

A: The fetus during pregnancy is dependent upon the mother for its nutrition. The circulatory system…

Q: What is the role of the corpus luteum in the first trimester of pregnancy?

A: Pregnancy, often known as gestation, is the period in which a woman's body develops one or more…