What are the mainsubstances transferred fromthe mother to the fetusthrough the placenta? Andfrom the fetus to the mother?

Q: What is the ovum doing during the primary oocyte stage?

A:

Q: What is the importance ofthe uterine glycogen-producing glands?

A: Uterine glands or endometrial glands are tubular glands, lined by ciliated columnar epithelium,…

Q: When does the postnatal period of life begin?

A: The postnatal period of life is the earliest stages of the babies after their birth. This stage is…

Q: Identify the extraembryonic membranes and provide afunction for each.

A: Extraembryonic membranes are the membranes that assist in the development of embryo. They are…

Q: What are the major features of embryonic development at various months of pregnancy?

A: Within twenty hours after the fertilization, the zygote starts to divide rapidly into many cells.…

Q: What are the major events that occur from fertilized egg to birth?

A: Fertilization is the process of fusion of the male gamete (sperm) with the female gamete (ovum) to…

Q: How many days after ovulation does implantation occur, and inwhat stage is the conceptus at that…

A: Implantation is the stage when the embryo adheres to the uterine wall after fertilization. Ovulation…

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: What happens if the fallopian tubes are partially blocked and the ovulated eggs are prevented from…

A: The fallopian tubes are two thin tubes located on each side of the uterus. It is the site of…

Q: What is the differencebetween amnion and chorion?

A: Both amnion and chorion are present during a woman’s pregnancy and are part of the extra embryonic…

Q: What are some examples of genetic conditions and teratogens thatcause birth defects?

A: The term genetic refers to the genome present in the cells of an organism. Genome is the complete…

Q: When do hCG levels spike during pregnancy?

A: Human chorionic gonadotropin (HCG) is a hormone, which is secreted by the cells that are surround a…

Q: What impact does the growth of the uterus during pregnancy have on other organs of the abdomen?

A: During pregnancy, the uterus grows slowly as the fetus grows and develops. The upper part of the…

Q: What causes the newborn to take its first breath immediately after birth?

A: The amount of CO2 accumulated in the baby body caused acidosis

Q: Where does fertilizationusually occur, and what hormonal changeshappen after fertilization?

A: Fusion of sperm with ovum is known as fertilisation Fertilisation generally occurs in fallopian tube…

Q: What are the endocrinefunctions of the placenta?

A: The placenta is a large organ that develops during pregnancy. It is usually attached to the uterine…

Q: What are the functions of amniotic fluid?

A: The newborn fetus comes with an umbilical cord. This cord ends up with two umbilical arteries and…

Q: How does the oocyte nucleus move during oogenesis?

A: Oogenesis: Otherwise called as ovogenesis. This is a process that happens during the embryonic…

Q: Describe the formation and functions of the placenta?

A: The human placenta is allanto-chorial (the chorial placental circulation is connected with the…

Q: List the three primary germ layers.

A: After the fertilization of the egg cell and the sperm cell, a zygote is formed which undergoes…

Q: How does oogenesis produce egg cells?

A: Oogenesis is a type of gametogenesis that results in the production of female gametes, also called…

Q: What are the cells producedin the first stage of theembryonic developmentcalled?

A: The process in which the embryo forms and develops is known as embryonic development.

Q: What is the major function of the Placenta?

A: The placenta is an organ that develops in uterus during pregnancy. The placenta is the interface…

Q: Which are the phases ofthe menstrual cycle?

A: The phenomenon of sloughing of the walls of the uterus in an orderly manner is called menstrual…

Q: What is the function of the placenta?

A: Placenta is formed after implantation of the embryo has occurred on the uterine wall. It is a…

Q: How is the oocyte moved through the uterine tube?

A: The female reproductive system performed diverse functions. It produces ovum also known as an egg.…

Q: What are the structural changes that occur in the uterus over the course of the menstrual cycle and…

A: The menstrual cycle is a sequence of natural modifications in hormone manufacturing and the systems…

Q: how is a childs wolrd broadend during the preoperational stage?

A: Piaget theory states the four different stages of the development of children and that depicts…

Q: What happens during the secretory phase of the endometrium?

A: The uterine cycle represents the cyclic changes that occur inside the uterus of a female.

Q: When is amniocentesis performed?

A: Fertilization is key process in sexual reproduction. When male and female gamete unites successfully…

Q: What are the three germ layers formed during gastrulation?

A: Developmental Biology is the field of biology that studies the processes by which multicellular…

Q: Which feature of the fetal circulation system allows the blood to bypass the liver?

A: The fetal blood and cardiovascular system are adapted to the intrauterine environment. The amount of…

Q: how long is birth?

A: Labor is split into three different phases. The first step of labor involves full dilation of the…

Q: What is  maternal effect?

A: The sperm only donates its nucleus at the time of fertilization. The cytoplasm of the zygote is…

Q: Why does amenorrhea occur?

A: Menstrual period refers to shedding of the thickened uterine wall along along with unfertilized ovum…

Q: What are the most frequent aches and pains experienced during the first, second, and third…

A: A woman's womb is where one or more children develop (gestate) during pregnancy. Multiple…

Q: Why does an infant have to gain weight in the first six months?

A: Healthy infants generally vary in the form of sizes. In any case, baby development will be normal…

Q: Does the position of the fetus in the uterus change very much toward the endof the 38th week?

A: The best ideal position for labour is head-down, facing back, with chin tucked to its chest and back…

Q: Which hormones are secreated by the placenta to maintain pregnancy?

A: The placenta is an organ that develops in uterus during pregnancy.  The placenta is the interface…

Q: What is the phenotype of GG?

A: Phenotype It is the term used in genetics for the observable characteristics or traits of an…

Q: How does the embryo get nourishment inside the mother’s body?

A: Embryo means the developing offspring from the time of approximately 2nd to 8th weeks after the…

Q: When does implantation of the blastocyst usually take place?

A: During fertilization, a sperm comes in contact with the zona pellucida layer of the ovum and induces…

Q: What is the difference between the anterior and posterior determinant for the oocyte?

A: The difference in the anterior and posterior parts of an embryo is due to the difference between the…

Q: Which germ layer of a blastocyst gives rise to muscle and connective tissues?

A: The mesoderm give rise to muscle ,connective tissue , lymphatic system bones,circulatory system,etc.

Q: What is oogenesis?

A: An female’s internal reproductive organs are uterus, vagina, fallopian tubes, cervix, and ovary. The…

Q: What is the endocrinefunction of the placenta?

A: Placenta is the organ that develops in the uterus during pregnancy. This structure is essential for…

Q: what are the principal structures each germ layer gives rise to in the adult?

A: The zygote is a cell formed by the union sex cell of the male (sperm) and sex cell of the female…