Reproduction Flashcards
What cells secrete testosterone?
Leydig cells
what cells nourish sperm
sertoli cells
what stimulates leydig cells
LH
where are sperm stored
in the vas deferens
most of the fluid that composes sperm comes from what secretions
seminal vesicle secretions
what is capacitation
the change that sperm undergoes to “activate” after ejaculation
what is the active form of testosterone
dihydrotestosterone
The Y chromosome cause a regression in what ducts
mullerian ducts
the lack of a Y chromosome causes a regression in what ducts
wolffian
LH acts on what cells to secrete progesterone
granulosa cells
what do granulosa cells secrete
progesterone
progesterone provides a strong inhibitory effect on ___ & ___
FSH and LH
what cells secrete inhibin
lutein
Estrogen has a stronger effect on bone fusion than testosterone (T/F)
TRUE
what is progesterone’s most important function
to cause secretory changes in the uterine endometrium during the second half of the menstrual cycle to prepare the egg for possible implantation
the end of the menstrual cycle shows a degradation of the ___ ___
corpus luteum
when the corpus luteum degrades what occurs?
a decrease in progesterone which triggers a rise in LH and FSH which will trigger the flushing of the egg and the start of a new cycle
Urinary gonadotropin levels will ___ exponentially at menopause
rise
female puberty is triggered by what
FSH and LH by the anterior pituitary and by GnRH from the hypothalamus
