embryo
human being growing in the uterus from the time of conception to the 8th week
fetus
human being growing in the uterus from the end of the eighth week until birth
newborn
birth to 1 month
infant
1 month- 1 year
toddler
1-3 years old
preschool
3-5 years old
elementary school
6- 10 years old
middle school
11- 13 years old
adolescent
14- 19 years old
young adult
20- 40 years old
middle aged adult
40- 65 years old
mature adult
65 years old and up
genes
units of hereditary material contained in a person's cells; everyone's are unique
cephalocaudal
growth from "head-to-tail"; big to little
esteem
feeling important and worthwhile; required before self actualization
intellectual cognitive development
thinking skills a person develops during a particular period of growth and development
physical development
actual bodily changes observed during a particular period
social development
the way a person relates to those around him, i.e. friends, family, business associates
physiological needs
food, water, oxygen, sleep
psycho-emotional development
changes in feelings a person may experience during a particular period of growth and development
development milestones
significant points of achievement that occur in each life stage