Chapter 8: Human Development Flashcards
Study of changes in people from conception to death
HUMAN DEVELOPMENT
Research Designs:
One group followed and assessed as they age (at different times)
LONGITUDINAL DESIGN
Research Designs:
Several different age groups are studied at one time
CROSS - SECTIONAL DESIGN
Research Designs:
Two groups different age followed for a while
CROSS - SEQUENTIAL DESIGN
Influence of inherited characteristics
NATURE
Influence of environment
NURTURE
Science of inherited traits
GENETICS
Molecule that contains genetic material
DNA
Section of DNA with same arrangement of chemical elements
GENE
Strand of genetic material of DNA
CHROMOSOME
Gene that actively controls expression of trait
DOMINANT TRAIT
Only influences the expression of trait
RECESSIVE TRAIT
Born without the ability to breakdown phenylalanine
PHENYLKETONURIA (PKU)
Disease of the respiratory and digestive tracts
CYSTIC FIBROSIS
Blood disorder
SICKLE CELL ANEMIA
Fatal Neurological disorder
TAY-SACHS DISORDER
Extra chromosome
21st
DOWN SYNDROME
23rd = XXY
KLINEFELTER’S SYNDROME
Lone X chromosome
short, infertile, sexually underdeveloped
TURNER’S SYNDROME
Prenatal Development:
Egg (ovum) unite with the sperm resulting to _
FERTILIZATION
ZYGOTE
Prenatal Development:
1 to 2 weeks after fertilization
Zygote moves to uterus and begins to implant lining
Placenta and umbilical cord develop
GERMINAL STAGE
Prenatal Development:
2-8 weeks
Heart and digestive system begin to develop
Critical period
EMBRYONIC STAGE
Any factor that can cause a birth defect
TERATOGENS
Prenatal Development:
8 weeks after conception until birth
Fetus
Muscles begin to contract during 3rd month
FETAL STAGE
Infancy and Development:
At birth
🌬💉🌡🚽
RESPIRATORY SYSTEM FUNCTION
BLOOD CIRCULATION
BODY TEMPERATURE REGULATED
DIGESTIVE SYSTEM STARTS TO WORK
Infancy and Development:
Reflexes for survival (5)
GRASPING SUCKING STARTLE (MORO REFLEX) STEPPING ROOTING (Turning head looking for nipple)
Infancy and Development: Sensory ✋🏻👃🏻👅 👂🏻 👀
TOUCH, SMELL, TASTE (Most well developed)
HEARING (functional but not well developed)
SIGHT (least developed)
Infancy and Development:
Raising head and chest
Rolling over
2 to 5 months
Infancy and Development:
Sitting with support
4 to 6 months
Infancy and Development:
Sitting up without support
6 to 7 months