PSYCH211 Lecture Notes - Lecture 5: Sex Organ, Osteoporosis, Basal Metabolic Rate
Document Summary
Chapter 5 physical development: the brain body motor skills and sexual development. Growth is particularly rapid in infancy and adolescence. Then, shortly before birth, the ends of the cartilage structures, known as epiphyses, turn to bone. Changes in physical development from one generation to the next are known as secular growth trends. Sleep is essential for normal growth because about 80% of the hormone that stimulates growth named, appropriately, growth hormone is secreted while children and adolescents sleep. The biological start of adolescence is puberty, which refers to the adolescent growth spurt and sexual maturation. Osteoporosis is a disease in which a person"s bones become thin and brittle, and, as a consequence, sometimes break. Sexual maturation includes change in primary sex characteristics, which refer to or- gans that are directly involved in reproduction. Sexual maturation also includes change in secondary sex characteristics, which are physical signs of maturity that are not linked directly to the repro- ductive organs.
