Prenatal Period SlideShare Prenatal development and histochemical characteristics of gastrointestinal mucins in sheep fetuses Article in Microscopy Research and Technique 81(1) В· March 2018 with 81 Reads How we measure 'reads'
Prenatal Development SlideShare. Early childhood is the period from prenatal development to eight years of age. It is a crucial phase of growth and development because experiences during early childhood can influence outcomes across the entire course of an individual’s life (1,2). For all children,, 11 Genetic and Environmental Influences on Human Development 11.1 Introduction We may often wonder about the reasons and forces which shape our personality and character. Each one of us has a specific kind of nature which takes that particuler form because of the effect of two major factors. The first is the genetic make-up which we inherit from our parents, and the second influence comes from.
The Fels Longitudinal Study of human development of the 1930s applied scientific methods to this subject. Potential prenatal maternal influences on fetal and child development that were studied include exposures such as cigarette smoking and nutritional factors as well as maternal psychological factors of emotionality and stress [2, 3]. Some 80 Genetic factors are traits passed through genes. A baby inherits these genes from.their parents at the time of conception. The parents genes combined create a "blueprint" for the zygot (single cell formed at conception) growth and development. during the prenatal period these
Hazards to Prenatal Development: Teratogens •Teratogens are any agents from the environment that can cause harm to the developing fetus. •Many harmful agents cause damage only if exposure occurs during a sensitive period of prenatal development. •Critical factors that influence the degree of harm a teratogen will cause: –The amount and length of exposure –Individual differences in Genetic factors are traits passed through genes. A baby inherits these genes from.their parents at the time of conception. The parents genes combined create a "blueprint" for the zygot (single cell formed at conception) growth and development. during the prenatal period these
Prenatal development actually begins when the first initial cells divide. Development continues daily until the baby is born. There are differing opinions about this and it is somewhat subject to 7.1 Conception and Prenatal Development Learning Objectives . Review the stages of prenatal development. Explain how the developing embryo and fetus may be harmed by the presence of teratogens and describe what a mother can do to reduce her risk. Conception occurs when an egg from the mother is fertilized by a sperm from the father. In humans, the conception process begins with …
Genetic factors are traits passed through genes. A baby inherits these genes from.their parents at the time of conception. The parents genes combined create a "blueprint" for the zygot (single cell formed at conception) growth and development. during the prenatal period these The development of an individual is accomplished by a selective switching on and off of genes. The life span of every placental animal can be divided into two periods: prenatal and postnatal. The prenatal period begins with fertilization of the oocyte and ends with delivery. In humans, during the prenatal period, the age of the conceptus is
They are many characteristics associated with prenatal stage in pregnancy; you have the regular urge to pee due to the pressure of the foetus weight on the bladder, you feel like vomiting, you determinants of health and development from conception to young school-age children. The scope of this work includes prenatal development to eight years of age from the standpoint of how it influences health across the life course taking a developmental perspective on schooling including education as a social determinant of health.
In most cases, prenatal development occurs normally and follows the established patterns of development with little variation. However, there are a number of things that can go wrong during this time, which are usually caused by genetics or environmental problems. Fetal Alcohol Syndrome (FAS) was the first form of FASD discovered and is the most well-known. Heavy alcohol use during the first trimester of pregnancy can disrupt normal development of the face and the brain. In fact, exposure at any point during gestation may affect brain development. An FAS diagnosis requires: Evidence of prenatal alcohol
They are many characteristics associated with prenatal stage in pregnancy; you have the regular urge to pee due to the pressure of the foetus weight on the bladder, you feel like vomiting, you It is unclear what the contribution of prenatal versus childhood development is for adult cognitive and sensory function and age-related decline in function. We examined hearing, vision and cognitive function in adulthood according to self-reported birth weight (an index of prenatal development) and adult height (an index of early childhood
488 Chapter 19 Prenatal Development and Birth Fetal Development T he time from conception to birth is usually about nine full months. These nine months are divided into three 3-month periods called trimesters. Read about the changes that take place during each trimester in Figure 19.2.Compare the images to see the growth of the fetus in each Early childhood is the period from prenatal development to eight years of age. It is a crucial phase of growth and development because experiences during early childhood can influence outcomes across the entire course of an individual’s life (1,2). For all children,
It is unclear what the contribution of prenatal versus childhood development is for adult cognitive and sensory function and age-related decline in function. We examined hearing, vision and cognitive function in adulthood according to self-reported birth weight (an index of prenatal development) and adult height (an index of early childhood Factors in Child Development Part I: Personal Characteristics and Parental Behavior Draft Final Report Prepared for: Centers for Disease Control and Prevention Public Health Service U.S. Department of Health and Human Services Prepared by: Betty Rintoul Judy Thorne Ina Wallace Margaret Mobley Jennifer Goldman-Fraser Heather Luckey Research Triangle Institute Center for Research in Education P
Prenatal development and histochemical characteristics of gastrointestinal mucins in sheep fetuses Article in Microscopy Research and Technique 81(1) В· March 2018 with 81 Reads How we measure 'reads' Prenatal development and histochemical characteristics of gastrointestinal mucins in sheep fetuses Article in Microscopy Research and Technique 81(1) В· March 2018 with 81 Reads How we measure 'reads'
Human Development Introduction Meaning of Development Life-Span Perspective on Development Growth, Development, Maturation, and Evolution (Box 4.1) Factors Influencing Development Context of Development Overview of Developmental Stages Prenatal Stage Infancy Childhood Gender and Sex Roles (Box 4.2) Challenges of Adolescence Adulthood and Old Prenatal development: The process of growth and development within the womb, in which a single-cell zygote (the cell formed by the combination of a sperm and an egg) becomes an embryo, a fetus, and then a baby. The first two weeks of development are concerned with simple cell multiplication. This
What are the characteristics of the prenatal stage Answers. 03/04/2012В В· The development of the central nervous system is complex and includes dorsal and ventral induction, neuronal proliferation, and neuronal migration, organization, and myelination. Migration occurs in humans in early fetal life. Pathogenesis of malformations of the central nervous system includes both, In most cases, prenatal development occurs normally and follows the established patterns of development with little variation. However, there are a number of things that can go wrong during this time, which are usually caused by genetics or environmental problems..
Complex Developmental Issues of Prenatal Drug Exposure. Prenatal Development •Nature and nurture combine forces in prenatal development. •Much of development is generated by the fetus itself. Conception •Conception is the union of the mother’s and father’s sex cells, also known as gametes or germ cells. –Mother’s sex …, Prenatal development (from Latin natalis, meaning 'relating to birth') includes the development of the embryo and of the fetus during a viviparous animal's gestation. Prenatal development starts with fertilization, in the germinal stage of embryonic development, and continues in fetal development ….
Complex Developmental Issues of Prenatal Drug Exposure. In most cases, prenatal development occurs normally and follows the established patterns of development with little variation. However, there are a number of things that can go wrong during this time, which are usually caused by genetics or environmental problems. https://simple.wikipedia.org/wiki/Cloning Prenatal Development • Introduction – Compared to the newborns of other species, human newborns are quite helpless, dependent and underdeveloped at birth. – As a result, much of our development occurs in a rather stimulating environment, which is both a challenge and a source of opportunity – Even so, a great deal of development occurs.
Prenatal development: The process of growth and development within the womb, in which a single-cell zygote (the cell formed by the combination of a sperm and an egg) becomes an embryo, a fetus, and then a baby. The first two weeks of development are concerned with simple cell multiplication. This They are many characteristics associated with prenatal stage in pregnancy; you have the regular urge to pee due to the pressure of the foetus weight on the bladder, you feel like vomiting, you
Prenatal Development •Nature and nurture combine forces in prenatal development. •Much of development is generated by the fetus itself. Conception •Conception is the union of the mother’s and father’s sex cells, also known as gametes or germ cells. –Mother’s sex … Prenatal Development • Introduction – Compared to the newborns of other species, human newborns are quite helpless, dependent and underdeveloped at birth. – As a result, much of our development occurs in a rather stimulating environment, which is both a challenge and a source of opportunity – Even so, a great deal of development occurs
Hazards to Prenatal Development: Teratogens •Teratogens are any agents from the environment that can cause harm to the developing fetus. •Many harmful agents cause damage only if exposure occurs during a sensitive period of prenatal development. •Critical factors that influence the degree of harm a teratogen will cause: –The amount and length of exposure –Individual differences in Developmental Characteristics and Interests of School-Age Children Transition Years Grades K-1 (5-6 years) Enjoy long periods of free play Developing eye-hand coordination Enjoy small group cooperative games May require rest after high energy play Improved body coordination; yet still can fall easily Eager to receive adult praise Enjoy dramatic play Eager to engage in new activities/adventures
Hazards to Prenatal Development: Teratogens •Teratogens are any agents from the environment that can cause harm to the developing fetus. •Many harmful agents cause damage only if exposure occurs during a sensitive period of prenatal development. •Critical factors that influence the degree of harm a teratogen will cause: –The amount and length of exposure –Individual differences in Developmental Characteristics and Interests of School-Age Children Transition Years Grades K-1 (5-6 years) Enjoy long periods of free play Developing eye-hand coordination Enjoy small group cooperative games May require rest after high energy play Improved body coordination; yet still can fall easily Eager to receive adult praise Enjoy dramatic play Eager to engage in new activities/adventures
25/02/2016В В· Infancy is a plateau in development - The rapid growth and development which took place during the prenatal period suddenly comes to a stop with birth. The halt in growth and development, characteristic of this plateau is due to the necessity for making radical adjustment to the postnatal environment. Once these adjustments have been made affect development? Conception and Genetics 2.1 What are the characteristics of the zygote? 2.1a What are the risks associated with assisted reproductive technology? 2.2 In what ways do genes influence development? Development from Conception to Birth 2.3 What happens in each of the stages of prenatal development?
The Fels Longitudinal Study of human development of the 1930s applied scientific methods to this subject. Potential prenatal maternal influences on fetal and child development that were studied include exposures such as cigarette smoking and nutritional factors as well as maternal psychological factors of emotionality and stress [2, 3]. Some 80 behavior, and mental and motor development. Researchers agree, however, that prenatal exposure to drugs is only one, and probably not the most important, of many factors than can influence a child’s development. Postnatal environment is probably more important than prenatal drug exposure in determining outcomes in child development. Intensive
The prenatal period of development is a time of physical growth, but what's going on inside the brain is critical for future psychological development. The brain development that takes place during the prenatal period helps set the course for what will take place outside the womb. Factors in Child Development Part I: Personal Characteristics and Parental Behavior Draft Final Report Prepared for: Centers for Disease Control and Prevention Public Health Service U.S. Department of Health and Human Services Prepared by: Betty Rintoul Judy Thorne Ina Wallace Margaret Mobley Jennifer Goldman-Fraser Heather Luckey Research Triangle Institute Center for Research in Education P
Prenatal development and Infancy Class Objectives What is Developmental Psychology? Prenatal Development Factors that influence prenatal development Development refers to the pattern of continuity and change that occurs throughout the course of life. Developmental psychologists are interested in how people change, physically and psychologically as they age. Three types of change 1. … Prenatal Development • Introduction – Compared to the newborns of other species, human newborns are quite helpless, dependent and underdeveloped at birth. – As a result, much of our development occurs in a rather stimulating environment, which is both a challenge and a source of opportunity – Even so, a great deal of development occurs
Prenatal development, in humans, the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth (or parturition). The human body, like that of most animals, develops from a single cell produced by the union of a male and a female gamete (or sex affect development? Conception and Genetics 2.1 What are the characteristics of the zygote? 2.1a What are the risks associated with assisted reproductive technology? 2.2 In what ways do genes influence development? Development from Conception to Birth 2.3 What happens in each of the stages of prenatal development?
Prenatal development and histochemical characteristics of gastrointestinal mucins in sheep fetuses Article in Microscopy Research and Technique 81(1) В· March 2018 with 81 Reads How we measure 'reads' All development takes place according to certain principles some of which are as follows: 1. All growth and development follow an orderly sequence. A child can sit only when the muscles of the back are ready to support the body. 2. Each child normally passes through a number of stages, each with its own essential characteristics. 3. There are
Prenatal Development. Teaching Children the Facts of Life Male and Female Reproduction Birth Defects, Genetics, and Heredity Pregnancy Stages of Prenatal Development Labor, Childbirth, and Postpartum Care. Teaching Children the Facts of Life. Overview (pdf) Teacher Information 26/03/2009В В· While going over the facts of prenatal development I will present the case for the pro-life view that full humanness begins at conception. I will deal with objections to this view when I critique the decisive moment and gradualist views in both this article and the final part of this series. First Month. Pregnancy begins at conception, the time at which the male sperm and the female ovum unite
Conception and Prenatal Development lardbucket. Human Development Introduction Meaning of Development Life-Span Perspective on Development Growth, Development, Maturation, and Evolution (Box 4.1) Factors Influencing Development Context of Development Overview of Developmental Stages Prenatal Stage Infancy Childhood Gender and Sex Roles (Box 4.2) Challenges of Adolescence Adulthood and Old, Review the stages of prenatal development. Explain how the developing embryo and fetus may be harmed by the presence of teratogens and describe what a mother can do to reduce her risk. Conception occurs when an egg from the mother is fertilized by a sperm from the father..
Complex Developmental Issues of Prenatal Drug Exposure. Prenatal development and histochemical characteristics of gastrointestinal mucins in sheep fetuses Article in Microscopy Research and Technique 81(1) · March 2018 with 81 Reads How we measure 'reads', Prenatal development (from Latin natalis, meaning 'relating to birth') includes the development of the embryo and of the fetus during a viviparous animal's gestation. Prenatal development starts with fertilization, in the germinal stage of embryonic development, and continues in fetal development ….
7.1 Conception and Prenatal Development Learning Objectives . Review the stages of prenatal development. Explain how the developing embryo and fetus may be harmed by the presence of teratogens and describe what a mother can do to reduce her risk. Conception occurs when an egg from the mother is fertilized by a sperm from the father. In humans, the conception process begins with … Human Development Introduction Meaning of Development Life-Span Perspective on Development Growth, Development, Maturation, and Evolution (Box 4.1) Factors Influencing Development Context of Development Overview of Developmental Stages Prenatal Stage Infancy Childhood Gender and Sex Roles (Box 4.2) Challenges of Adolescence Adulthood and Old
All development takes place according to certain principles some of which are as follows: 1. All growth and development follow an orderly sequence. A child can sit only when the muscles of the back are ready to support the body. 2. Each child normally passes through a number of stages, each with its own essential characteristics. 3. There are Prenatal development, in humans, the process encompassing the period from the formation of an embryo, through the development of a fetus, to birth (or parturition). The human body, like that of most animals, develops from a single cell produced by the union of a male and a female gamete (or sex
behavior, and mental and motor development. Researchers agree, however, that prenatal exposure to drugs is only one, and probably not the most important, of many factors than can influence a child’s development. Postnatal environment is probably more important than prenatal drug exposure in determining outcomes in child development. Intensive As discussed at the beginning of this module, developmental psychologists often divide our development into three areas: physical development, cognitive development, and psychosocial development. Mirroring Erikson’s stages, lifespan development is divided into different stages that are based on age. We will discuss prenatal, infant, child, adolescent, and adult development.
Early childhood is the period from prenatal development to eight years of age. It is a crucial phase of growth and development because experiences during early childhood can influence outcomes across the entire course of an individual’s life (1,2). For all children, Review the stages of prenatal development. Explain how the developing embryo and fetus may be harmed by the presence of teratogens and describe what a mother can do to reduce her risk. Conception occurs when an egg from the mother is fertilized by a sperm from the father.
In most cases, prenatal development occurs normally and follows the established patterns of development with little variation. However, there are a number of things that can go wrong during this time, which are usually caused by genetics or environmental problems. The Fels Longitudinal Study of human development of the 1930s applied scientific methods to this subject. Potential prenatal maternal influences on fetal and child development that were studied include exposures such as cigarette smoking and nutritional factors as well as maternal psychological factors of emotionality and stress [2, 3]. Some 80
Prenatal Period 1. INTRODUCTION All the developmental theories which we lengthily discussed dwelt on the developmental process after birth. None of them was concerned with the development went on before birth. To make the description of human development complete, it may be good to understand the beginnings of the child and the adolescent. In 26/03/2009В В· While going over the facts of prenatal development I will present the case for the pro-life view that full humanness begins at conception. I will deal with objections to this view when I critique the decisive moment and gradualist views in both this article and the final part of this series. First Month. Pregnancy begins at conception, the time at which the male sperm and the female ovum unite
Prenatal Development 1. Prenatal Period Chapter II- Child and Adolescent Period 2. Topics to be discussed: • Characteristics of the period • Prenatal Development o How life begins o Ovulation, fertilization, conception o Genetic and chromosomal abnormalities o Multiple births o … Prenatal Period 1. INTRODUCTION All the developmental theories which we lengthily discussed dwelt on the developmental process after birth. None of them was concerned with the development went on before birth. To make the description of human development complete, it may be good to understand the beginnings of the child and the adolescent. In
Early childhood is the period from prenatal development to eight years of age. It is a crucial phase of growth and development because experiences during early childhood can influence outcomes across the entire course of an individual’s life (1,2). For all children, Prenatal Development • Introduction – Compared to the newborns of other species, human newborns are quite helpless, dependent and underdeveloped at birth. – As a result, much of our development occurs in a rather stimulating environment, which is both a challenge and a source of opportunity – Even so, a great deal of development occurs
It is unclear what the contribution of prenatal versus childhood development is for adult cognitive and sensory function and age-related decline in function. We examined hearing, vision and cognitive function in adulthood according to self-reported birth weight (an index of prenatal development) and adult height (an index of early childhood As discussed at the beginning of this module, developmental psychologists often divide our development into three areas: physical development, cognitive development, and psychosocial development. Mirroring Erikson’s stages, lifespan development is divided into different stages that are based on age. We will discuss prenatal, infant, child, adolescent, and adult development.
Genetic factors are traits passed through genes. A baby inherits these genes from.their parents at the time of conception. The parents genes combined create a "blueprint" for the zygot (single cell formed at conception) growth and development. during the prenatal period these The development of an individual is accomplished by a selective switching on and off of genes. The life span of every placental animal can be divided into two periods: prenatal and postnatal. The prenatal period begins with fertilization of the oocyte and ends with delivery. In humans, during the prenatal period, the age of the conceptus is
Prenatal Development Pearson. Prenatal Development •Nature and nurture combine forces in prenatal development. •Much of development is generated by the fetus itself. Conception •Conception is the union of the mother’s and father’s sex cells, also known as gametes or germ cells. –Mother’s sex …, Prenatal Development. Teaching Children the Facts of Life Male and Female Reproduction Birth Defects, Genetics, and Heredity Pregnancy Stages of Prenatal Development Labor, Childbirth, and Postpartum Care. Teaching Children the Facts of Life. Overview (pdf) Teacher Information.
•Nature and nurture combine forces in prenatal development. Children (WIC) seeks to improve fetal development and reduce the incidence of low birth weight, preterm birth, and maternal anemia through intervention during pregnancy (1). Prenatal WIC receipt is associated with lower infant mortality and stronger cognitive development among toddlers and children (2,3). All states and the District of Columbia, 11 Genetic and Environmental Influences on Human Development 11.1 Introduction We may often wonder about the reasons and forces which shape our personality and character. Each one of us has a specific kind of nature which takes that particuler form because of the effect of two major factors. The first is the genetic make-up which we inherit from our parents, and the second influence comes from.
Definition of Prenatal development MedicineNet. Prenatal Development. Teaching Children the Facts of Life Male and Female Reproduction Birth Defects, Genetics, and Heredity Pregnancy Stages of Prenatal Development Labor, Childbirth, and Postpartum Care. Teaching Children the Facts of Life. Overview (pdf) Teacher Information https://en.m.wikipedia.org/wiki/Fetal_Origins_Hypothesis As discussed at the beginning of this module, developmental psychologists often divide our development into three areas: physical development, cognitive development, and psychosocial development. Mirroring Erikson’s stages, lifespan development is divided into different stages that are based on age. We will discuss prenatal, infant, child, adolescent, and adult development..
The prenatal period of development is a time of physical growth, but what's going on inside the brain is critical for future psychological development. The brain development that takes place during the prenatal period helps set the course for what will take place outside the womb. behavior, and mental and motor development. Researchers agree, however, that prenatal exposure to drugs is only one, and probably not the most important, of many factors than can influence a child’s development. Postnatal environment is probably more important than prenatal drug exposure in determining outcomes in child development. Intensive
Prenatal Stages of Development 'Steve, it's time!' Jennifer is letting her husband know that the moment they've been planning for is here, and Steve rushes his wife to the hospital. affect development? Conception and Genetics 2.1 What are the characteristics of the zygote? 2.1a What are the risks associated with assisted reproductive technology? 2.2 In what ways do genes influence development? Development from Conception to Birth 2.3 What happens in each of the stages of prenatal development?
26/03/2009 · While going over the facts of prenatal development I will present the case for the pro-life view that full humanness begins at conception. I will deal with objections to this view when I critique the decisive moment and gradualist views in both this article and the final part of this series. First Month. Pregnancy begins at conception, the time at which the male sperm and the female ovum unite Prenatal development (from Latin natalis, meaning 'relating to birth') includes the development of the embryo and of the fetus during a viviparous animal's gestation. Prenatal development starts with fertilization, in the germinal stage of embryonic development, and continues in fetal development …
and cognitive development. Children who meet the clinical definition of fetal alcohol syndrome (FAS) are small for their age, exhibit characteristic facial anomalies, and demonstrate deficits in central nervous system development. Alcohol effects in children with prenatal exposure, but not FAS, are similar, although of smaller behavior, and mental and motor development. Researchers agree, however, that prenatal exposure to drugs is only one, and probably not the most important, of many factors than can influence a child’s development. Postnatal environment is probably more important than prenatal drug exposure in determining outcomes in child development. Intensive
Review the stages of prenatal development. Explain how the developing embryo and fetus may be harmed by the presence of teratogens and describe what a mother can do to reduce her risk. Conception occurs when an egg from the mother is fertilized by a sperm from the father. 25/02/2016В В· Infancy is a plateau in development - The rapid growth and development which took place during the prenatal period suddenly comes to a stop with birth. The halt in growth and development, characteristic of this plateau is due to the necessity for making radical adjustment to the postnatal environment. Once these adjustments have been made
Developmental Characteristics and Interests of School-Age Children Transition Years Grades K-1 (5-6 years) Enjoy long periods of free play Developing eye-hand coordination Enjoy small group cooperative games May require rest after high energy play Improved body coordination; yet still can fall easily Eager to receive adult praise Enjoy dramatic play Eager to engage in new activities/adventures As discussed at the beginning of this module, developmental psychologists often divide our development into three areas: physical development, cognitive development, and psychosocial development. Mirroring Erikson’s stages, lifespan development is divided into different stages that are based on age. We will discuss prenatal, infant, child, adolescent, and adult development.
affect development? Conception and Genetics 2.1 What are the characteristics of the zygote? 2.1a What are the risks associated with assisted reproductive technology? 2.2 In what ways do genes influence development? Development from Conception to Birth 2.3 What happens in each of the stages of prenatal development? 26/03/2009В В· While going over the facts of prenatal development I will present the case for the pro-life view that full humanness begins at conception. I will deal with objections to this view when I critique the decisive moment and gradualist views in both this article and the final part of this series. First Month. Pregnancy begins at conception, the time at which the male sperm and the female ovum unite
All development takes place according to certain principles some of which are as follows: 1. All growth and development follow an orderly sequence. A child can sit only when the muscles of the back are ready to support the body. 2. Each child normally passes through a number of stages, each with its own essential characteristics. 3. There are determinants of health and development from conception to young school-age children. The scope of this work includes prenatal development to eight years of age from the standpoint of how it influences health across the life course taking a developmental perspective on schooling including education as a social determinant of health.
Prenatal development (from Latin natalis, meaning 'relating to birth') includes the development of the embryo and of the fetus during a viviparous animal's gestation. Prenatal development starts with fertilization, in the germinal stage of embryonic development, and continues in fetal development … 11 Genetic and Environmental Influences on Human Development 11.1 Introduction We may often wonder about the reasons and forces which shape our personality and character. Each one of us has a specific kind of nature which takes that particuler form because of the effect of two major factors. The first is the genetic make-up which we inherit from our parents, and the second influence comes from
The prenatal period of development is a time of physical growth, but what's going on inside the brain is critical for future psychological development. The brain development that takes place during the prenatal period helps set the course for what will take place outside the womb. Genetic factors are traits passed through genes. A baby inherits these genes from.their parents at the time of conception. The parents genes combined create a "blueprint" for the zygot (single cell formed at conception) growth and development. during the prenatal period these
Prenatal Development 1. Prenatal Period Chapter II- Child and Adolescent Period 2. Topics to be discussed: • Characteristics of the period • Prenatal Development o How life begins o Ovulation, fertilization, conception o Genetic and chromosomal abnormalities o Multiple births o … All development takes place according to certain principles some of which are as follows: 1. All growth and development follow an orderly sequence. A child can sit only when the muscles of the back are ready to support the body. 2. Each child normally passes through a number of stages, each with its own essential characteristics. 3. There are