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Flashcards in Test 5 Deck (104)
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1

______________ began at age 15 and lasted a few months

adolescence 100 years ago

2

____________ now lasts a decade or more

adolescence

3

______________ is when separate period of development has now been identified

emerging adulthood

4

What is the age of puberty?

8-14

5

How long does puberty typically last?

3-5 years

6

after puberty, many more years are required to achieve this

psychosocial maturity

7

__________ is when puberty begins before age 8 and happens between 1 and 5000 people

precocoius puberty

8

signaling that ovulation has begun

menarche

9

pregnancy is biologically possible, but ovulation and menstruation are often irregular for how long?

4 years after menarche

10

what is the average age of menarche for normal-weight girls

12.5 years

11

____________ is boys first ejaculation

spermarche

12

How early can erection occur?

infancy

13

____________ signals sperm production

ejaculation

14

What is the average age for spermarche?

just under 13

15

_______________ is the paired sex glands (ovaries in females, testicles in males).

gonads

16

What do gonads produce?

hormones and gametes

17

________ is a sex hormone, considered the chief estrogen.

estradiol

18

____________ is a sex hormone, best known of the androgens

testosterone

19

__________ is when a day-night cycle of biological activity occurs approximately every 24 hours

circadian rhythem

20

__________ cause a phase delay in sleep-wake cycles

hormones

21

what work together to make teens increasingly sleep-deprived with each year of high school

biology (circadian rhythms) and culture (parties and technology)

22

What are the reason for variation?

-genes
-gender
-secular trend
-fat
-stress

23

_____________ account for about 2/3 of variation in age of puberty

genes

24

what have a marked effect on age of puberty onset

genes on the sex chromosome

25

when to girls generally develop in relation to boys?

ahead

26

Children who have a relatively large proportion of what experience puberty sooner than do their thin contemporaries?

body fat

27

____________ is adolescents in 21st century begin puberty earlier

secular trend

28

_____________ is likely to begin puberty earlier if more what in life

stress

29

____________Tend to have lower self-esteem, more depression, poorer body image than later maturing girls.

early maturing girls

30

______________ is more aggressive, law breaking, and alcohol abusing than later-maturing boys

early maturing boys