Ch.1 Puberty Psyc 332
Popular in Psychology of Adolescence
Popular in Psychology (PSYC)
PSYC 100 - 001
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This 3 page Class Notes was uploaded by Luppino70 on Friday September 16, 2016. The Class Notes belongs to Psyc 332 at University of Wisconsin - Eau Claire taught by Dr. Jennifer Parker in Fall 2016. Since its upload, it has received 12 views. For similar materials see Psychology of Adolescence in Psychology (PSYC) at University of Wisconsin - Eau Claire.
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Date Created: 09/16/16
Ch. 1 Puberty Thursday, September 8, 2016 9:37 AM Pubertas is the Latin word for adult. The goal of puberty is the body getting us ready for sexual reproduction Endocrine System: Produces, regulates, and circulates hormones. Everything comes from within the body. Hormones: Specialized substances that are responsible for metabolism, growth, tissue function, sexual function, sleep, and mood. Organizational Roles: process of early exposure to hormones organize the brain and other organs in preparation of later changes. Prenatal hormones, patterns of behavior Activation Role: Hormone levels change and create changes in behavior, growth, and appearance Glands: Organs that stimulate particular parts of the body that respond specific ways through certain hormones HPG Axis Hypothalamus: Responsible for controlling the pituitary gland, a part of the brain. The Master regulator. Gonadotropin-releasing hormone (GNRH) goes to the pituitary gland. Monitoring the hormones at a set point, when there is enough it will reduce production, or increase production when enough is needed, like a thermostat. Pituitary gland: most responsible for regulating hormones in the body. Lutenizing Hormone and Follicle Stimulation go to the gonads to begin maturation Gonads: Testes in men and ovaries in women, they release Estrogens and Androgens (testosterone). Everybody has both of these, more testosterone for men, more estrogen for women. What starts puberty? What starts the HPG axis? It is suspected that Leptin is important. When leptin levels rise is may cause the HPG kick in. Other things correlate along with puberty, having mature sexual partners (being around people who are sexually mature (like older siblings or with friends who hit their puberty), nutrition, involvement in sports, and stress. These things tend to effect females more than males. Environmental factors are stress in healthcare, nutrition. Puberty in context Timing varies by region of the world Western, developed, tribal society SES Status Access to better quality resources and living conditions Ethnic Group Historical Era Physical Changes Growth Spurt Height and Weight Increase, Growth and thyroid hormones release and androgens Epiphysis: the connecting of two bones and ends growth spurts Sexual Characteristics Boys get more muscle, broader shoulders, legs get longer Girls get more body fat, shapelier figures, hips widen. Sexual Maturation Boys: Orderly usually, can father a child while appearing physically immature Girls: Less orderly sequence, Menarche: The first time menstruation occurs. Look more mature before able to fully be able to reproduce No average age is universal, the changes from people within the same environment comes from genetic differences. Group differences differ over time and countries, Adrenarche: Maturation of the Adrenal Glands leading to physical changes. Kidneys, Liver, etc. Pheromones: chemicals excreted by animals that create a response in other animals of the same species. Secular Trend: Over the last the last 200 years the trend of people hitting puberty earlier in life due to better nutrition and health. The evidence that hormone change is responsible for moodiness in adolescence is weak. Melatonin: a hormone that is used to aid in sleep. Basal Metabolism Rate: the amount of minimal energy the body uses at rest.
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