Name the extraembryonic membrane that gives rise toeach of the following: umbilical blood vessels, the firstblood cells, and the fetal half of the placenta.

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: Y Why is fetal Hb essential for the survival ofplacental animals?

A: Hemoglobin is an oxygen transport protein in mammals. It is made up of four subunits. Adult…

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: . List the major steps in oogenesis.

A: The both male and the female sexual reproductive organs are important for the reproduction process.…

Q: Define the Fetal Development third through ninth months ofdevelopment ?

A: Fetal development: - The development of human embryo after fertilization is the fetal development.…

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: Identify where an oocyte is produced and how it is transported to the uterus.

A: The uterus can be defined as the muscular organ hollow in shape and it is situated in the female…

Q: The core of a chorionic villus of a placenta is occupied by foetal connective tissue known as what

A: The core of a villus consists of blood vessels and mesenchyme that is similar in composition to the…

Q: What are the mainsubstances transferred fromthe mother to the fetusthrough the placenta? Andfrom the…

A: The placenta is the connecting link between the fetus and the other. It is generally found in 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: The surface that enables active and passive exchange between the fetal and maternal bloodstreams is…

A: Answer is b.)  chorionic villi.

Q: Unlike some other types of birth defects, neural tube defects are largely preventable. Explain

A: Birth defects refer to the defects that occur in a person while he/she is still a fetus growing in…

Q: Define amniocentesis

A: During pregnancy, several procedures and tests are done by medical practitioners. These tests help…

Q: Define Precocious puberty?

A: Human life is divided into various stages. The various stages includes child, teenager, adult, old…

Q: Trace the pathway of blood circulation in the fetus.

A: A heart is an important organ of the circulatory system which pumps the blood to arteries and…

Q: Explain the function of the placenta.

A: The placenta is referred to as the organ that develops in the body within the mother's uterus at 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: Define about the human chorionic gonadotropin (HCG) ?

A: Human chorionic gonadotropin (HCG) it is a hormone.

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: Define fetal

A: Fetal is the unborn baby of human being, or we can say developing baby inside the female womb. Fetal…

Q: Identify the hormonal changes that occur during pregnancy.

A: Pregnancy is generally a nine-month-long time period where an offspring develops within a woman.…

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: List the hormones involved in pregnancy, and describe the functions of each.

A: The life process of the formation of a new organism from existing organisms is called reproduction.…

Q: Describe the events that occur following fertilization ofthe oocyte and the process of implantation…

A: The menstrual cycle of a woman repeats itself every 28 days and consists of four phases namely the…

Q: What symptoms may appear in a newborn if its ductus arterio-sus fails to close?

A: Patent ( open )  Ductus Arteriosus is a congenital heart defect which happen after birth in newborns…

Q: structure and basic functions of the uterus

A: Answer:  Outline the structure of the uterus: Uterus, also called womb, an inverted pear-shaped…

Q: Describe the major developments during each trimester of human gestation.Describe the major…

A: Gestation is the time of advancement during the conveying of an embryo or fetus inside viviparous…

Q: Discuss the respiratory, cardiovascular, and digestivechanges that occur in the newborn.

A: Respiratory changes in the newborn: In the womb, the placenta help in the delivery of oxygen, and…

Q: List the hormones responsible for oogenesis, and explain each hormone’s effect on oogenesis.

A: Oogenesis is the process of formation of ovum from primordial germ cells of the ovarian lining.…

Q: Give a brief explanation on how chromosomal abnormalities affect prenatal pregnancy or birth.

A: Genetic conditions are conditions that are inherited to children due to faulty genes. Various…

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: The birth starts thanks to increased ... ... release of glucocorticoids from the fetus. ...…

A: The time between the initiation of productive contractions and the birth is referred to as the birth…

Q: Name the structure formed by the villi of the embryo and the uterus of the mother.

A: The uterus or womb is a major female hormone-responsive secondary sex organ of the reproductive…

Q: indicate the duration of the embryonic vs fetal period.

A: Gestation is divided into pre-embryonic, embryonic and fetal stages. The embryonic stage starts from…

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: Name the layer of cells that forms the outer wall of blastocyst.

A: Blastocyst is a developmental stage of the the embryo to form an foetus. This developmental form is…

Q: List and give the functions of the 4 major extraembryonic fetal membrane

A: The extraembryonic membrane are those extra embryonic structure which are forward from extra…

Q: Describe how the following components relate to the placenta: umbilical arteriescotyledons, fetal…

A: When an egg is fertilised, it separates into two parts: the embryo and the placenta, which grows…

Q: At which stage of pregnancy does the highest risk ofcentral nervous system damage occur?

A: The central nervous system (CNS) is a vital component of the human body. It controls the body’s many…

Q: Visit this site (http://openstaxcollege.org/l/pregstages)for a summary of the stages of pregnancy,…

A: The period of pregnancy can last for about 40 weeks from the first day of the last normal period.

Q: During which of the 3 stages of oogenesis does the oocyte nucleus move?

A: Oogenesis- Oogenesis is the process of formation of female gametes. This process begins inside the…

Q: State some functions of placenta.

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