Prenatal Period Between Conception And Birth

At one month of pregnancy the baby is still any embryo and it is made up of two layers which will soon produce into body parts and organs. In the first two weeks of pregnancy a women isn’t actually pregnant because the women’s body is preparing for ovulation as usual. You usually ovulate (release an egg) around two weeks after the first day of your period this depends on the length of your period. Then during the third week after the first day of your last period your fertilised egg moves across the fallopian tube towards the womb. The egg starts off as a single cell but it divides multiple times. By the time the egg reaches the womb it becomes the mass of 100 cells which is known as an embryo. In the fourth week of pregnancy the embryo grows and develops in the lining of the womb. The outer cells reach out and link themselves with the mothers blood supply. The inner cells form

The prenatal period takes place in the first two weeks of conception. Heredity and environmental influences (which are often negative) are also developed during this stage. At this stage the organism is more susceptible to these influences, than during any other period. Infancy is the next stage, various changes start to occur and attachments start to form. Coordination, sensory and motor skills start to develop, as well as the expression of

A blastocyst is a ball of sixteen somatic cells that contains a thin spherical wall of cells surrounding a fluid-filled center which resembles a fluid-filled balloon. There are no organs or tissues at this stage and lacks a body plan. Eventually 9 six days after conception, the blastocyst attaches to the mom so it can join

S: Page 134 is all about the embryonic period of pregnancy. The embryonic period lasts from week 3 to week 8, and it is a very important time because that is when the ectoderm, mesoderm, and endoderm are being formed. The ectoderm, mesoderm, and endoderm will later for more important oragans and body structures.

Biological development of a fetus is vary rapid and complex over the nine-month period in the womb. When both the male spermatozoon and the female ovum combine it forms what is called a zygote which holds the twenty-three pairs of chromosomes. The zygote or the embryo undergoes cell division and makes its way to the uterine wall to implant itself, this process is completed about ten days after conception. By the end of the eighth week the organ systems have formed and human characteristics can start to be noticed. From the eighth week until birth the embryo is now labeled a fetus. Quickening can occur from the sixteenth week until birth, this is where the mother can feel the fetus moving. Around the twenty-second week viability can take place, this is where the fetus can survive outside the womb. The nine-month period of being pregnant is split into different trimesters. With the different trimesters there are different abortion procedures can be used to remove the fetus.

When an embryo becomes a fetus at eight weeks, it is approximately 3 centimeters; by the time the fetus is considered full-term, he or she may be 50 centimeters (Brisbane 60). The fetal stage, that takes place during week 9 to birth, result in a whole bunch of changes. (Brisbane 61). During the fetal stage, all parts of the body mature, and the overall of the baby size increases. Although all of the organ systems were formed during embryonic development, they continue to develop and grow during the fetal stage as well. During the third month, the reproductive system becomes developed and the sex of the baby becomes apparent (Staff). For girls, the ovarian follicles begin to form and for boys the prostate gland. Throughout months four through six, the heartbeat grows stronger and other body systems become further developed (Brisbane 63). Features such as fingernails, hair, eyelashes and toenails form. During the period from seven months until birth, the fetus continues to develop, put on weight, and prepare for life outside the womb (Brisbane 64). The lungs begin to expand and contract, preparing the muscles for breathing (Brisbane 64). The time in which the baby is born is a very critical. In some situations, a baby can be born as early as 7 months. When a baby is born too early, his ar her organs are not usually fully formed. This can result in many complications and health problems. Including, If premature pregnancy is the case, the baby would need some intensive care in hospitals. If the baby survives the stages, at the end of the nine month of pregnancy the baby will turn to a head-down position to prepare for birth. If the baby is not in the head-down position and in breech position a cesarean section may be required, which can cause many more complications. If a baby passes all these crucial factors, it is guaranteed to be born

Pre birth is the period that usually lasts nine months, this is the stage where the major body organs and parts are made such as the facial

The germinal stage marks the beginning of prenatal development when the zygote begins to rapidly divide for one week after conception. However, less than one-half of the zygotes will survive past the first two weeks. The zygotes become more specialized as

In this chapter it talks about the development of how a fetus changes into a baby. The first part of the chapter starts out by talking about how the zygote divides into the two cells. With another 36 hours the zygote becomes 32 cells. This time period of conception is call germinal stage. In the first few days in the germinal stage the cell mass takes the form of a fluid-filled ball called a blastocyst. The dividing cells cell moves through the fallopian tube, then they go throw to the uterus. This chapter also talks about how although humans are not chickens their babies are formed in the same way. Like in a chickens egg the yoke develops into a baby chicken, and in a human the embryo becomes a fetus. Then the chapter starts to talk about the different things bleeding while being pregnant can mean. Although a majority of people believe that if a woman bleeds while pregnant mans that she has had a miscarriage, it can mean many of different things. Miscarriages can be caused by many different things, and can cause many different types of problems. Such as a high risk of having anxiety and it also puts relationships at a higher percentage of ending. One third of percent end in a miscarriage. Miscarriages happed within the first three months of pregnancy. Woman who are over the age of thirty are more likely to have a miscarriage. Miscarriages can be cause from many things such as chromosomal problems, substance use, or hormonal problems. The next thing that this chapter

    According to parents.com, after conception, a fetus begins to develop rather quickly. In the fifth week of pregnancy, a baby’s heart begins to beat. A baby also develops three distinct layers, ectoderm, endoderm, and mesoderm. These three layers will eventually form the body systems that are necessary

Important stages of pregnancy: Pregnancy is counted from the first day of the mother 's last period. Important development immediately takes place after fertilisation of egg and sperm cells. It divides into many cells in the first week, which forms a zygote made out of 100 to 150 cells that are already differentiating. In the second week, the zygote is then changed to an embryo and it sticks to the uterine wall. This process takes up to nine months to form and develop a baby.

The embryonic period- is from 2-8 weeks, fetal stage is from 8-36 weeks, and the full term is from 38-41 weeks. Every step of

The first period is the germinal period. According to study.com, the germinal period is when the mother's egg is fertilized by the father's sperm. As the sperm and the egg cells intertwine with one another to for a cell called the zygote. A zygote is a single cell. The beginning of

The fetal stage is the stage in which is marked by rapid growth and preparation

Life starts out as a fetus in the mother’s womb. This process lasts about 40 weeks. The 40 weeks are broken up into three trimesters. It begins with a stage called conception. This is when the sperm cell fertilizes the egg creating a zygote (the developing individual produced from such a cell). The zygote divides into many cells which is then rooted in the uterus. This is called a fetus