Explain how the structure of the placenta prevents mixing of fetal and maternal blood while allowing for the exchange of substances between the mother and the fetus.

Q: Explain the role of placenta for human life ?

A: Placenta act as channel to exchange matter from mother to foetus. Placenta bind to foetus with the…

Q: Give the origins and functions of the chorion, amnion, allantois, and yolk sac.

A: The extraembryonic membrane can be defined as the type of membrane which helps in the development of…

Q: Placenta ... a) ... develops from trophoblast cells. b) ... develops from embryoblast cells. c)…

A: Pregnancy occurs when the male gamete sperm fuses and fertilizes with the female egg that is…

Q: Explain why sperm cannot fertilize an egg immediately after ejaculation?

A: The reproductive system(male and female) is a complex system with a number of interconnected…

Q: Describe the structure of the placenta and the pathways for exchange between maternal and fetal…

A: The placenta is an organ that forms in the uterus during pregnancy and helps in the transport of…

Q: Describe the processes of fertilization, embryonic development, fetal development, and birth.

A: Answer- Every organism reproduces for their continuity of species. In sexual mode of reprodution the…

Q: Describe the stages of birth, and also explain the role of midwives and doulas in the birth process

A: Labour is a process of giving birth the product of conception in completed gestational age. labor…

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: Describe the function of the extraembryonic membranes.

A: It is situated outside the embryo and developed from the zygote but not part of the embryo Four…

Q: Explain the process of fertilisation.

A: Fertilisation is the process of the union of mobile sperm cell and immobile egg, generally taking…

Q: Describe the process of oogenesis

A: Sexually reproducing organisms have a reproductive system consisting of primary sex organs called…

Q: Early pregnancy tests used antibodies to detect the presence of human chorionic gonadotropin (hCG)…

A: The outermost membrane that surrounds the embryo is known as chorion. From the outer fold of the…

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: Describe the formation and implantation of a human blastocyst

A: Developmental biology is the branch of science that includes the studies of a diversity of…

Q: Explain why fertilization requires more than one sperm.

A: The zone pellucida is seen as a dense, transparent girdle surrounded by the Corona radiata cells.…

Q: Describe the structure of the placenta

A: Placenta serves as the interface between the fetus and the mother. It facilitates the transfer of…

Q: Explain the organization of the mammary gland with the help of a diagram.

A: Female reproductive system consists of a pair of ovaries, glands, a duct system and many supporting…

Q: Explain the process of giving  childbirth

A: Reproduction : it is the biological processes by which an organism produces an offspring of its own…

Q: Outline the hormonal control of the birth process.

A: Labor is a process of mother giving birth to the child. The child comes out of the vagina from the…

Q: Explain the process of fertilisation and implantation.

A: Fertilization is the process of the union of mobile sperm cell and immobile egg, generally taking…

Q: pig fetus  Describe how the developing fetus exchanges material during pregnancy.

A: The placenta is a membrane, which surrounds the developing fetus during pregnancy. It provides…

Q: Describe nutritional, excretory, respiratory, and immune functions of the placenta

A:

Q: Define neonatal period.

A: Embryo is defined as the earliest stage of development of the fertilized zygote(formed by the fusion…

Q: State the significance of mother’s milk to a new-born infant.

A: Mother's milk is produced by the special glands called as mammary glands and these are present in…

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: Describe the structure and function of the placenta and umbilical cord

A: The placenta and umbilical cord are important for the survival of the fetus.

Q: Identify two differences between a zygote and blastocyst

A: The fusion of male and female gametes is termed as fertilization. The process of fertilization takes…

Q: Explain the organizational effects of androgens on the developing fetus.

A: Androgens have an important role in male sexual and reproductive function. They also have a role in…

Q: Explain the location of the testes in the fetal pig.

A: Anatomy can be defined as a branch of biology that is associated with the study of the organism’s…

Q: Draw a schematic diagram of the fetal circulation indication the route of blood flow from the…

A: Fetal circulation encompasses the fetoplacental circulation. It refers to the circulatory system of…

Q: Name any two systems in the baby's body that take over the functions of a Placenta once the baby is…

A: The placenta is a blood vessel-rich organ that forms in your uterus during pregnancy. This structure…

Q: Discuss the adaptations of a woman’s body to pregnancy?

A: Gestation or the pregnancy is the period during which offspring develop within a woman. In humans,…

Q: If the egg is NOT fertilized, the lining of the uterus will shed.  This is called?

A: In the event that the egg is fertilised by a sperm cell as it goes down the fallopian tube,…

Q: Explain why pregnant women often suffer from back strain late in their pregnancy.

A: Pregnancy, also known as gestation is the time during which one or more offspring develops inside…

Q: Chemicals that pass through the placenta’s screen and mayharm an embryo or fetus are called…

A: The common chromosomal abnormality that occurs due to a missing or extra chromosome number is called…

Q: Describe the organization of the extraembryonic membranes

A: All amniotes have the extraembryonic components: 1. the amnion, chorion, 2. yolk sac, and 3.…

Q: Describe the structure and functions of the four extraembryonic membranes

A: The layers inside the egg around the embryo are called extraembryonic membranes, and they nourish…

Q: Explain the way in which the yolk amount affects the cleavage. Compare the Cleavage in a sea star…

A: Yolk  Yolk is a nutrient rich part of the egg which support the growth of developing embryo.

Q: Explain the origins of the blastocyst cavity and what purpose does it serve?

A: The blastocyst is formed just after 5 days of fertilization.  It is composed of inner cell mass…

Q: Explain the Formation of the extraembryonic membranes

A: An extraembryonic membrane is one of the membranes which assist in the development of the embryo. It…

Q: Distinguish between: embryo and a fetus

A: The terms embryo and fetus both refer to the developing baby inside the mother’s womb. The…

Q: Describe the roles of the four extraembryonic membranes.

A: Introduction :- One of the membranes that aid in the development of the embryo is the extraembryonic…

Q: State some functions of placenta.

A: Pregnancy is also called as gestation, during which one or more offspring develops in the uterus of…