Fetus Brain Development

Development of the embryo into a fetus throughout pregnancy consists of three main periods of development, made up of several weeks of development between each one; these are referred to commonly and by medical professionals as the first, second, and third trimesters of pregnancy. Following conception, the embryonic stage of prenatal development begins through the fifth week of pregnancy in which major structures begin to form. At this stage, the cells of the body begin to differentiate into cells that are specialized in unique functions such as blood, kidney, and nerve cells for their corresponding organ systems (Hill, 2016). According to Sacks

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

Ultrasounds should be performed on expecting mothers to ensure the health of the fetus during the pregnancy. The ultrasounds can be used to make sure that the fetus is meeting the expected growth requirements per trimester. There are 3 trimesters during a normal pregnancy and each trimester has its own growth requirements to ensure that by the time the pregnancy is expected to be over the fetus should be fully developed. The First Trimester is weeks 1-12 of the pregnancy.(10-1) At the end of the first month, the embryo has a heartbeat, a two-lobed brain, and a spinal cord. By the end of the second month, the embryo is recognizable as a human and is called a fetus. After two months, the embryo has started to from arm and legs as well as fingers, ears, and toes. The fetus can be visibly identified as a male or female. By the end of the first trimester, the heart has 4 chambers (1-8). The Second Trimester is weeks 13-28 of your pregnancy.(10-2) By the

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.

Even the language of conception and gestation have been hijacked by politics and religious fundamentalists. All unborn are called “fetuses.” This clearly shows the ignorance of basic human biology. The newly fertilized egg is a zygote --- not a fetus and not a human being. It is a few cells with potential but no distinguishing characteristics and no ability to feel anything. A zygote becomes a blastocyst, which is a zygote that has reached a certain number of cells but has not yet stuck to the uterine walls. Five weeks after conception, snug in the uterine tissue it becomes an embryo. It does not become a fetus until it is ten weeks old and has ears and some facial features. Society laughs at people who call zebras “horses” and yet tolerates the word fetus for zygote, blastocyst and embryo. Getting the language right can help laypeople realize that a zygote or blastocyst is not a baby.

7 Weeks: Within the 7th weeks of conception you will notice that the baby start developing of the eyes, showing the shapes of the face, noise, hands, fingers, and thumbs, all the shapes that starting to look like a little like a baby. The baby is now weigh about 1 inch long and 1/8 ounces.

Pregnancy occurs when a sperm and egg unite, this is called conception. A zygote is created, in one week the zygote attaches itself on the uterine wall, and in two weeks becomes an embryo. Week 10 of pregnancy the embryo turns into a fetus. The fetus develops more and more for 28 weeks. Around 39-40 weeks, a woman can go into labor. Labor is when the mother starts having contractions, and the baby’s head starts dropping into the cervix. The cervix dilates and thins out. As the cervix is fully dilated at 10 centimeters the mother beings pushing. Vaginal birth entails less discomfort after delivery (9). Vaginal birth babies can go home with their babies sooner (9). Vaginal births take roughly one or two weeks for recovery (1). During natural birth the baby gets a ‘squeeze.’ This forces mucus and fluid out of the baby’s airway. With the Caesarean, the baby does not get the beneficial squeeze like vaginal

This is what potentially creates the baby. After 3 weeks of being fertilized, the embryo is less than 1/10 of an inch. The heart of the baby is now beating. At 4 weeks it is about 1/5 of an inch long. It now has a tale that is its back bone that will disappear in a few weeks. Genes are being turned on and cells are able to talk through chemical messages. 18 weeks after being fertilized, the baby is able to be viewed through an ultra sound and in some cases, able to determine the sex of the baby. The embryo is enabled with two sets of gonads and two sets of tubes which is what can make the baby either a male or female. One pair of chromosomes determines which sex that baby will be. After 29 weeks, it is now a fetus and just over an inch long. The fetus heart beats about twice as many times as an adult heart. There is a 50% increase in blood supply for the mother. Now the mother is ready to give birth. Human births are actually more dangerous than any other mammal. The baby preforms many contortions to fit through the mother's opening and if not able to be born through vaginal birth, the mother will undergo a "C" section. After nine months of carrying another human being inside her stomach and going through labor and painful child birth, the mother is blessed with a beautiful child.

    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

First trimester: By 12 weeks of pregnancy the foetus will be fully formed. The ovum grows and develops certain important parts of the baby’s body such as spinal cord, nervous system, gastrointestinal system, heart and lungs in the first four weeks from conception. The heart starts beating and brain and other organs forms by eight weeks. At this stage, the face is formed and arms and legs start to move. The baby grows to 3 inches long and

In the first trimester of pregnancy the uterus begins to support the growth of the placenta and the fetus, the body adds to its blood supply to carry oxygen and nutrients to the developing fetus, and heart rate begins to increase. The fetus develops all of its organs by the end of the third month. Following these changes there can be symptoms such as fatigue, morning sickness, headaches, and constipation.

The stages of pregnancy are divided into three trimesters; a typical pregnancy lasts 40 weeks from the first day of your last menstrual period (LMP) to the birth of the baby. It is divided into three stages, called trimesters: first trimester, second trimester, and third trimester.

Brain development in the first two years is the most important and critical. Maria Montessori referred to this time as of the "absorbent mind" Early brain development is the frame work for the road ahead. When and how the brain develops in the first two years will play a critical role into adulthood. At birth, the brain is the only incomplete organ. The brain will continue to grow through childhood and adolescents.

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