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Flashcards in Puberty Deck (31):
1

Adrenarche is an increase in adrenal androgen production from the __ __ of the adrenal gland

zona reticularis

2

What three hormones are increased

DHEA, DHEA-S, androstenedione

3

Adrenarche is independent of the __ hormone

ACTH

4

Occurs ___ sexual characteristics appear and is responsible for ___

before; pubarche

5

Adrenarche and __ are independently regulated

gonadarche

6

Thelarche (breast development) occurs in response to

gonadarche

7

Thelarche is stimulated by an onset of ___ and ___ secretion

GnRH; gonadotropin

8

Tanner development stages of the breast and pubic hair occurs earlier in __

blacks

9

Pubic and axillary hair development is due to __ only

adrenarche

10

Adrenarche plays little role in

skeletal development

11

Menarche occurs 2 years after

breast development

12

Initial menstrual cycles may be ___ because you don't reach the ___ levels to get a LH peack

anovulatory; estrogen

13

It's usual to have __ cycles for 3-4 years after initial menarche

irregular

14

__ girls may have early thelarche especially because adipose tissue has more ___

Fat; aromatase

15

Male puberty changes: sertoli cells stop ___ and the __ testicle grows faster

mitosis; right

16

Growth in girls during puberty is due to __ and __, and is also supported by __ for bone closing

GH and IGF-1; estrogen

17

The __ extremities grow before the __, and the _ grow before the __

distal; proximal; legs; trunk

18

Girls have their peak growth spurt __ years before boys

2

19

Because ___ levels are high during the neonatal period, high levels of __ can lead to estrogen or testosterone and form ___ __

gonadotropin; fsh; ovarian cysts

20

During childhood, something central suppresses the ___

HPG axis, FSH, LH

21

__ is a prepuberty marker of GnRH

LH

22

An initial sign of puberty is a nighttime surge of

LH

23

_ testosterone is needed for sperm production

local

24

__ NT may inhibit GnRH

GABA

25

Increased ___ may be associated with delayed puberty

NPY

26

__ is the hormone product of the ob gene and regulates __ and __ maturation

leptin; appetite; sexual

27

Leptin doesn't provide the signal which starts the pulsatile release of

GnRH

28

Another key hormone is ___ in the starting of the GnRH release

kisspeptin

29

___ status is probably the most important factor in starting menarche

nutritional

30

Exposure to __ may cause early puberty, same with diethylhexyphenatle

BPA

31

Environmental factors may act on transcription through

epigenetics