This document discusses human development and growth. It defines development as the process from dependency to autonomy, which involves qualitative, functional maturation of organ systems. Growth is defined as quantitative, measurable changes in body size. While growth and development are interrelated, growth refers specifically to physical changes while development encompasses cognitive, social, and emotional changes. The document also differentiates between growth and development, noting that growth is measurable and structural while development is qualitative and functional. It outlines several periods of human development from prenatal to late adulthood.