Adolescent Development Flashcards
When do girls undergo puberty?
around 11 years of age
when do boys undergo puberty?
around 13 years of age
how much weight do girls and boys gain during the adolescent growth spurt?
9 kg and 11.4 kg
when do girls begin their growth spurt relative to boys?
2 years before boys
when do both girls and boys start their growth spurt and reach mature status?
- girls = 11, 15
- boys = 13, 17
what are primary sex characteristics?
organs directly involved in reproduction
what are secondary sex characteristics?
physical signs of maturity that are not directly linked to reproduction
examples of secondary sex characteristics in girls and boys?
- girls = breasts and width of the pelvis
- boys = facial hair, deepening of the voice, broadening of the shoulders in boys
what is menarche?
onset of menstruation in girls
what is spermarche?
first spontaneous ejaculation of sperm-containing flui
what is the timing of menarche in countries where nutrition and health care are better?
earlier menarche
what does psychosocial stress do to menarche? why?
earlier menarche. the sustained stress pushes girl through development
what does higher bmi do to menarche? specifics of the fact?
higher bmi at age 8 in australia is associated with earlier menarche
are boys are girls more likely to be pleased with their appearance?
boys
what is early maturation for girls and boys?
9, 11