Chapter 4: Development Flashcards
What is the first step of prenatal development?
Fertilization
How many stages are there to prenatal development? Name them.
3 stages
- Zygote
- Embryo
- Fetus
What is the gestation period for Zygote?
Time of conception to 2 weeks
When does an egg become a zygote?
When the egg has been fertilized
What is a key characteristic of the Period of the Zygote?
Rapid cellular division
What is a blastocyst? Explain how the structures of the blastocyst will form.
A rapidly dividing ball of cells . Inner layer will become the embryo and outer layer will become its protection
What is the gestation period for the Embryo?
2 to 8 weeks
What are the key characteristics of the period of the embryo
- Major organs and systems begin to develop
2. Cephalocaudal and Proximodistal changes occur
What is the gestation period for The Fetus
Fetus is the longest gestation period.
9 weeks of gestation to birth
What are key characteristics of the period of the Fetus?
- Fetus begins to look more human
- finishing touches/refinements
- Most significant period of development
- Brain Development
- Weight gain
- Head moves to the lower belly
When can a fetus survive outside of the womb?
Starting at 22 week
In the fetal development stage, what does the fetus’s brain develop?
Sulci and Gyri
Explain what a teratogen is.
Environmental things that contribute negatively to the pregnancy
What is the critical period of teratogens to be avoided?
2 to 8 weeks gestation (embryotic period)
Name the most common teratogens?
Alcohol, Cigarettes, medication, specific viruses, drugs
Alcohol as a teratogen causes what type of defect?
Fetal Alcohol Syndrome
The Zika Virus causes what to happen to a fetus?
Caused Microcephaly, altered brain development, and stillbirth
What are the characteristics of a fetus being exposed to alcohol?
altered physical appearance, cognitive impairment, and damage to internal organs
During the first 3 years of age what do children gain?
- Motor development
- Language
- Cognitive Development - long term memory
- Social Development - social connections
Who is the father of Cognitive Development?
Jean Piaget
What is Cognitive Development?
How the brain develops and how we gain cognitive skills
Describe Constructivist.
Children contribute to their own learning/knowledge
Describe Dialectical.
Cognitive growth due to conflicts that alters existing perception
According to Piaget, How do children construct knowledge
Through Assimilation and accommodation