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
