Assignment : Stages Of Development

The topic of focus is Down syndrome (DS) teenagers between the ages of 12 - 18 years old. According to Erikson growth and development theory there are five stages, namely: Infancy, Toddlers, Preschoolers, School-ages and Adolescence (Teenagers) (Leifer 2011, p.365). The stage of development that we will be elaborating on is stage five, Adolescence. Erikson defines adolescence as “the period of life beginning with the appearance of secondary sex characteristics and ending with cessation of growth and emotional maturity” (Leifer 2011, p.451). Erikson continues in discussing that the major growth and development theory during the adolescence years in that he/she is trying to identify whom one is and because of their delayed physical and mental

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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

1.1) Explain the sequence and rate of each aspect of development from birth to 19 years.

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.

Those stages are the Germinal stage, the Embryonic stage, and the Fetal stage. The Germinal Stage is the first stage and it is a two-week period that happens after the sperm and egg cell join together to form a zygote. This process is called conception. After conception, the zygote begins to divide. This turns into into a ball of cells that moves beside the fallopian tube. This travels all the way to the uterus. This process is called implantation and it happens when the cells is placed in the wall of the uterus. This process takes about a week to complete. After the two weeks, the Embryonic stage takes place next. The embryonic stage takes two to eight weeks right after conception. At this point in the process, the ball of cells is now an embryo. In this stage, all the major organs form. The last stage of prenatal development is the Fetal stage. This last eight weeks after conception up to birth. One of the first things to take place is the sex organs begin to form. Next, the bones form, muscles form, and the fetus begins to move. The organ systems also begin to develop and the brain’s size grows. One of the last things to work independently is the respiratory and digestive

Directions: Provide a 25- to 50- word summary of development during each of the prenatal stages listed below.

with family members. We moved each year and never stayed in a home for more than two years.

Near term, the pregnant woman starts to have many hormonal changes, which will prepare her to give birth; however, prostaglandin plays the most critical role in this process. When the pregnant woman reach around 39 to 40 weeks of pregnancy, the fetus’ growth is completed as fetus’ organs are matured enough to start working on their own. Giving birth or what it is scientifically known as parturition or labor is a combination of hormonal and physiological changes that affect maternal tissue in order to facilitate the expulsion of the fetus through the birth canal. This labor process is divided into 4 stages, and it is initiated when fetal and placental corticotropin-releasing hormone increases and down-regulate progesterone hormone. Progesterone

    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.

Piaget’s Stage Theory in my eyes was four key stages of development marked by shifts in how they understand the world. To me Piaget’s theories had a major impact on the theory and practice of education.

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