Reproduction: Puberty Flashcards
1
Q
When does puberty occur in the female?
A
Age at first estrus
Age at first ovulation (humans: first menstrual bleeding)
Age at which female can support pregnancy
2
Q
When does puberty occur in the male?
A
Age when behavioral traits are expressed
Age at first ejaculation
Age when sperm first appear in ejaculate and urine
Age when ejaculate contains threshold number of sperm
3
Q
What factors influence the onset of puberty?
A
Genetics, time of year, gender, environmental and social conditions, nutrition, hormones
4
Q
___ estrogen(physiological) levels exert ___ feedback on GnRH release
___estrogen(physiological) levels exert ___ feedback on GnRH release
___ estrogen(pharmacological) levels exert ___feedback on GnRH release
A
Low:negative
High:positive
High:negative
