PSYB20H3 Chapter Notes - Chapter 14: Family Therapy, Congenital Disorder, Canadian Paediatric Society
Document Summary
Chapter 14: physical development and health in adolescence. Adolescence: adolescence a developmental transition that involves physical, cognitive, emotional, and social changes and takes varying forms in different social, cultural, and economic settings. In preindustrial societies, children entered the adult world when they matured physically or when they began a vocational apprenticeship. Puberty: puberty, the process that leads to sexual maturity, or fertility the ability to reproduce. How puberty begins: hormonal changes: an increase in gonadotropin-releasing hormone (gnrh) in the hypothalamus leads to a rise in two key reproductive hormones: follicle-stimulating hormone (fsh) and luteinizing hormone (lh). In girls, increased levels of fsh leads to the onset of menstruation. During this stage, the adrenal glands located above the kidneys secrete gradually increasing levels of androgens, principally dehydroepiandrosterone (dhea). By age 10, levels of dhea are 10 times what they were between ages 1 and 4. Dhea influences the growth of pubic, axillary (underarm), and facial hair.
