Middle Childhood Ages : Imagination — In middle childhoood, the sense of an inner subjective self develops for the first time, and this self is alive with images taken in from the outer world, and brought up from the depths of the unconscious. This imagination serves as a source of creative inspiration in later life for artists, writers, scientists, and anyone else who finds their days and nights enriched for having nurtured a deep inner life. Late Childhood Ages : Ingenuity — Older children have acquired a wide range of social and technical skills that enable them to come up with marvelous strategies and inventive solutions for dealing with the increasing pressures that society places on them.
This principle of ingenuity lives on in that part of ourselves that ever seeks new ways to solve practical problems and cope with everyday responsibilities. Adolescence passion thus represents a significant touchstone for anyone who is seeking to reconnect with their deepest inner zeal for life. This principle of enterprise thus serves us at any stage of life when we need to go out into the world and make our mark. This element of contemplation represents an important resource that we can all draw upon to deepen and enrich our lives at any age.
Mature Adulthood Ages : Benevolence — Those in mature adulthood have raised families, established themselves in their work life, and become contributors to the betterment of society through volunteerism, mentorships, and other forms of philanthropy. All of humanity benefits from their benevolence. Help Creative Commons. Creative Commons supports free culture from music to education.
Their licenses helped make this book available to you. Help a Public School. Previous Section. Table of Contents. Next Section. Explain how the human body develops from infancy through the toddler years. Changes during Pregnancy This ultrasound image shows a four-month-old fetus. Changes during Infancy A number of major physiological changes occur during infancy.
Changes during the Toddler Years Major physiological changes continue into the toddler years. Nutrition and Early Development In this chapter and the next, we will explore how the dietary decisions we make affect our health and wellness throughout the life cycle. Key Takeaways The human body constantly develops and changes throughout the human life cycle, and food provides the fuel for those changes.
The major stages of the human life cycle include pregnancy, infancy, the toddler years, childhood, puberty, older adolescence, adulthood, middle age, and the senior years. Proper nutrition and exercise ensure health and wellness at each stage of the human life cycle. Discussion Starter In preparation for this chapter and the next, predict how you think nutrient needs might differ at the beginning of life compared to the end of life.
The major six stages of the human life cycle are known that starts with the prenatal stage where fertilisation takes place and foetal development occurs inside a mother and then ends with the death of human beings. Therefore, old age is the final stage of the life cycle and death is the end of human life cycle. Human life cycle biology chapter is there in the books for students and it is easy to understand. The Human Life Cycle consists of various stages that include foetus, baby, childhood, adolescence, adulthood and elderly; these are discussed in detail as follows:.
Foetus- It is a creation called zygote with the fusion of an egg from the mother and a sperm from the father. It takes about 8 weeks for the embryo to turn into a human body shape and it is called the foetus. This is the way of expressing themselves as they cannot talk at this stage.
Ultrasound image of a fetus in the womb, viewed at 12 weeks of pregnancy bidimensional-scan. Wolfgang Moroder. In this chapter, we will focus on the human life cycle from the prenatal period into early childhood. We begin with pregnancy, a developmental marathon that lasts about forty weeks. It begins with the first trimester weeks one to week twelve , extends into the second trimester weeks thirteen to week twenty-seven , and ends with the third trimester week twenty-eight to birth.
At conception, a sperm cell fertilizes an egg cell, creating a zygote. The zygote rapidly divides into multiple cells and within two weeks becomes an embryo and implants itself in the uterine wall, where it develops into a fetus.
Some of the major changes that occur include the branching of nerve cells to form primitive neural pathways at eight weeks. At the twenty-week mark, physicians typically perform an ultrasound to acquire information about the fetus and check for abnormalities. By this time, it is possible to know the sex of the baby. At twenty-eight weeks, the unborn baby begins to add body fat in preparation for life outside of the womb.
Elaine U. Davis Company, , 81— A number of major physiological changes occur during infancy. The trunk of the body grows faster than the arms and legs, while the head becomes less prominent in comparison to the limbs.
Organs and organ systems grow at a rapid rate. Also during this period, countless new synapses form to link brain neurons. The posterior fontanel closes first, by the age of eight weeks.
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