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10 Cards in this Set
- Front
- Back
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Characteristics of the adolescent growth spurt
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Growth spurt
Rising hormonal levels Menstruation and ejaculation begin Girls develop breasts, boys develop hair on face, chest, voice deepens Pubic hair appears Reproduction becomes possible Interest in dating and sex increase Abstract and scientific thinking appear Teens question “who am I?” and “what will I do with my life?” |
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growth & development during puberty
females |
Typically enter the growth spurt by age 10.5, reach a peak growth rate by age 12, and return to a slower rate of growth by age 13 to 13.5
Most girls gain only about 2.5 cm in height after menarche By the end of the growth spurt, girls have increased 27.5 to 29 cm |
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growth & development during puberty
males |
begin their growth spurt by age 13, peak at 14, and return to a more gradual rate of growth by age 16
By the end of the growth spurt, boys have increased 28 to 31 cm in height |
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characteristics of puberty and sexual maturation
females |
Begins 9 – 11
Full breast development finishes around age 14 1/3 of all girls develop some pubic hair before their breasts begin to develop Reach menarche around age 12 |
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characteristics of puberty and sexual maturation
males |
Begins 11 – 12
Testes & scrotum grow and drop Sperm production beings age 13 – 14.5 Penis is fully developed at age 4.5 to 15 Body hair begins to grow, chest hair may not appear until late teens or early 20s Voice lowers |
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DMS criteria for anorexia nervosa
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Refusal to maintain body weight at or above a minimally normal weight for age and height
Intense fear of gaining weight or becoming fat, even though under weight. Disturbance in the way one's body weight or shape are experienced, undue influence of body weight or shape on self evaluation, or denial of the seriousness of the current low body weight. Amenorrhea (at least three consecutive cycles) in postmenarchal girls and women. |
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DMS criteria for bulimia nervosa
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Recurrent episodes of binge eating characterized by both:
Eating, in a discrete period of time (e.g., within any 2-hour period), an amount of food that is definitely larger than most people would eat during a similar period of time and under similar circumstances A sense of lack of control over eating during the episode, defined by a feeling that one cannot stop eating or control what or how much one is eating Recurrent inappropriate compensatory behavior to prevent weight gain Self-induced vomiting Misuse of laxatives, diuretics, enemas, or other medications Fasting Excessive exercise |
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how timing of puberty affects
females |
Maturing early may be somewhat of a disadvantage
Several studies find that early-maturing girls are somewhat less outgoing and less popular than their prepubertal classmates |
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how timing of puberty affects
males |
Boys who mature early enjoy a number of social advantages over boys who mature late
Early maturers tended to be poised and confident in social settings and were more likely to win athletic honors and election to student offices Late-maturing males also have lower educational aspirations than early maturers do, and they even score lower on school achievement tests early in adolescence Maturing early is an advantage |
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Determinants of body growth and development
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Genetic/biological factors
Neural control Hormonal influences Nutrition and health: under/overnutrition Social-emotional factors secular trends illnesses |
