Puberty (general) Flashcards
____ is the physiological transition from childhood to reproductive maturity and is Associated w/ growth spurt & appearance of both 1° and 2° sexual characteristics in children
Puberty
____ is Abnormally early puberty
Onset of menses prior to age __ in girls or puberty age __ in boys
Precocious puberty
8
9
How can you control precocious puberty?
by stopping pulsation of GnRH
____ is Delayed or not occurring puberty
Eunuchoidism
Puberty is related to changes in ___, “Pre-puberty” & adrenarche = changes in _______
GnRH
adrenal androgens.
Onset of puberty is signalled by the secretion of pulses of ___
Gonadotrophin Releasing Hormone (GnRH)
What suppresses the GnRH release to “disallow” the onset of puberty.
CNS
When does the Hypothalamic-pituitary-gonadal axis starts fxning
in fetal stage of development.
T/F: Just after birth, sex hormones and gonadotropins (FSH, LH) are present at very low levels. Those levels↓ in the months after birth.
False :they are present at adult levels just after birth, then the levels↓ in the months after birth.
Pulsatile GnRH is the signal that causes the activation of the ____
Hypothalamic-pituitary-gonadal axis
What Influences of the activation of the Hypothalamic-pituitary-gonadal axis (3)
Genetics: 50-80% of variation in pubertal timing
Environmental factors (nutritional status)
Leptin → regulates appetite and metabolism through the hypothalamus. It has a permissive role in regulating the timing of puberty.
there are 5 stages from childhood to full maturity these stages combined make up the
Tanner Staging
Secondary sexual characteristics are gained at:
Mean age ___ yrs in girls
Mean age __-___yrs in boys
- 5 in girls
11. 5 – 12yrs in boys
Tanner staging exists both for ____and ___.
adrenarche (hair growth)
thelarche (breast growth)
What puberty events occur in Females age 9-10 ?
widening of pelvis
rounding of hips
adrenarche
What puberty events occur in Females age 11
thelarche
pubarche
What puberty events occur in males age 11
adrenarche
What puberty events occur in Females age 12
gonadarche
peak of growth spurt
What puberty events occur in Females age 13
menarche
axillary hair
What puberty events occur in Males age 13
gonadarche
enlargement of testes
What puberty events occur in males age 14
Peak of growth spurt
gynecomastia of puberty
What puberty events occur in Females age 15
regular menstration with ovulation
What puberty events occur in males age 15
voice change
axillary hair
beard growth
What puberty events occur in Females age 16-17
cessation of long-bone growth
What puberty events occur in males age 16-17
male pubic hair
more bodily hair
What puberty events occur in males age 18-19
cessation of long-bone growth