Adolescence Flashcards
(92 cards)
What is adrenarche?
The timing of the maturation of the adrenal gland (a small gland located just above the kidneys)
When does adrenarche occur?
Between the ages of 6 and 11
What happens between the ages of 6 & 11 during adrenarche?
The adrenal gland secretes low levels of DHEA, the metabolism of which leads to the circulation of both testosterone & estradiol (the primary sex steroids)
What is an example of the expression of the “underground” biological processes that occur during adrenarche?
A child developing their first crush
When does gonadarche occur?
Between the ages of 13 & 20.
What is menarche?
The occurrence of a girl’s first period.
What is spermarche?
The occurrence of a boy’s first ejaculation.
What is activated during gonadarche?
The pituitary gland (near the hypothalamus)
What happens during gonadarche, aside from the activation of the pituitary gland?
Growth hormones are released, the sex organs mature (mature ova which are present since before birth are released) & sperm are manufactured.
Which kind of sex characteristics change during gonadarche?
Secondary sex characteristics
At what rate has the age of puberty onset decreased by over the past 150 years?
At a rate of 2 years
What triggers the onset of puberty?
Fat stores
What may change during puberty?
Health successes & social behaviours
What may have an impact on the onset of puberty?
Childhood nutrition & health status (through reduced childhood infections)
What is a puberty accelerator?
Stress
What is 1 of the stressors most effective at accelerating puberty?
Familial disruption, including father absenteeism
Has menarche begun earlier or later over time in some countries?
Earlier
What does the evolutionary theory of socialisation posit?
That early stressors can lead to early puberty
Which theory is taken from the original “parental investment theory” (Trivers, 1974)?
The evolutionary theory of socialisation
What is the idea of the “parental investment theory”?
That you model your ideas of parental investment on your childhood environment & that can trigger differences in pubertal onset.
What gradually increases over time for both boys & girls?
Height
What rapidly increases, then rapidly decreases, for both boys & girls?
Height gain per year
What happens at about the age of 13 for girls, & 16 for boys?
A final maturational growth spurt
Who tend to be less satisfied with their sizes, weights, & figures?
Girls who mature earlier than their peers.