Visit this site (http://openstaxcollege.org/l/pregstages)for a summary of the stages of pregnancy, as experiencedby the mother, and view the stages of development of thefetus throughout gestation. At what point in fetaldevelopment can a regular heartbeat be detected?

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: During the third trimester of pregnancy, the placenta is not the primary source of which hormone in…

A: Answer is b.)  prolactin.

Q: . List the major steps in oogenesis.

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

Q: Describe a positive feedback mechanism that contributes to ovarian cycling. If the ovulated oocyte…

A: Ovulation is the process of releass of ovum in female due to peak level of luteinizing hormone,…

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: After the first four month of the pregnancy what is the chief source of estrogen and progesterone

A: Progesterone and estrogen are female hormones that are primarily involved in regulating the…

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: 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: List the steps in oogenesis.

A: The process of differentiation of the egg-cell which is a type of gametogenesis is known as…

Q: Name the process of shedding of placenta from the uterus of mother after the birth of a baby.

A: When a sperm fuses with the egg a zygote is formed. This zygote further divides to form an embryo.…

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: Nutrient and waste requirements for the developing fetus are handled during the first few weeks by:…

A: Endometrium is the innermost lining of the uterus which undergoes cyclic changes during…

Q: State the roles of progesterone and estrogen in fetal development.

A: BASIC INFORMATION  FERTILIZATION  It is the process of the fusion of the male as well as the female…

Q: Describe the events that occur in embryonic developnment in the female from ovulation through to Day…

A: A baby undergoes several stages of development, beginning as a fertilized egg. The egg develops into…

Q: Which of the following is required for successful fetal development after the egg has been…

A: When sperm successfully enters and fuses with the ovum fertilization occurs. This genetic material…

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: Which of the following statements is TRUE about corpus luteum? O A. Secretions of the corpus luteum…

A: The corpus luteum produces progesterone, which is necessary for the embryo's growth. The placenta…

Q: Indicate and provide reasons for what is likely happen to pregnancy if a luteolytic dose of…

A: Prostaglandins induced  falls in progestogen concentration and rises in ICSH concentration; neither…

Q: Describe the features and process of a fetus embryo at 10 weeks of pregnancy

A: Within twenty-four hours once fertilization, the egg that may become your baby quickly divides into…

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 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: List the three stages of labor, and describe a major event that occurs in each stage.

A: After fertilization, the embryo gets embedded into the walls of the uterus and begins to develop.…

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: Describe the steps of gonad determination in the male and the female beginning with the migration of…

A: The gonads, the primary reproductive organs, are the testes in the male and the ovaries in the…

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: 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: Describe the changes the ovum undergoes from ovulation to implantation.

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Summarize the events in the three trimesters of pregnancy: Name of trimester What happensto the…

A: Pregnancy is a period during which the mother undergoes various physiological changes. As the fetus…

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 the name of the structure that the phrase describes. The fetus first doubles in size between…

A: Embryology is the study of the early development of animals from the fertilized egg to the…

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: How can the decisions women make during pregnancy impact the health of their developing offspring?…

A: Since mothers play such an important role in their children's health and quality of life, it's…

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: Assume that you have received a number of tests to assess fetal abnormalities. Identify and explain…

A: *There are 3 processes are carried out to detect the fetal abnormalities. They are Ultrasonography,…

Q: Which organ is much larger in the fetus than it is shortly after birth? O 1. kidneys 2. heart 3.…

A: The development of organ during the period of pregnancy is called organogenesis. From about 9 to 12…

Q: Explain why ultrasound imaging is the technique ofchoice for studying fetal growth and development.

A: The ultrasound imaging is also known as ultrasonography refers to the least imaging approach by…

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: At what point during become fully developed? a pregnancy does this organ or system begin to develop,…

A: Since you have asked multiple questions we will answer the first question for you. If you want any…

Q: Identify the three stages of labor, and describe the events that characterize each stage.

A: Labour It is defined as spontaneous onset of regular contractions, characterized by progressive…

Q: What interventions are performed in first stage of labor for comfort and to aid fetal descent?

A: One of life's most beautiful experiences is the birth of a child. Newborn newborns have incredible…

Q: Comment Figure 2. To facilitate your analysis, focus your comments on the squared region, where…

A: The uterus of the female reproductive system receives the embryo and allows its growth. It is a…