Growth and development patterns Continuity and phase process Continuous process Varies in different phase(two peak at infancy; at puberty · Imbalance Brain growth: rapid in the first 6 years of life Lymphoid tissue: increases rapidly before puberty and then declines The reproductive organs: remains slow until puberty General developmental pattern From top to bottom From near to far From crude to fine From unadvanced to advanced From simple to complex Individual variations二、Growth and development patterns • Continuity and phase process – Continuous process – Varies in different phase (two peak): at infancy; at puberty • Imbalance – Brain growth: rapid in the first 6 years of life – Lymphoid tissue: increases rapidly before puberty and then declines – The reproductive organs: remains slow until puberty • General developmental pattern – From top to bottom – From near to far – From crude to fine – From unadvanced to advanced – From simple to complex • Individual variations