Female and Male Reproductive Function

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Female and Male Reproductive Function
Similarities

• Hypothalamic releasing hormone gonadotropins

• Bifunctional gonads

• Compartmentalization of function

• Coordination between gametogenesis
  steroidogenesis

• Mechanisms of hormone action

Differences

• Hypothalamic-pituitary-gonadal feedback

• Gametogenesisoogenesis vs. spermatogenesis

• Steroidogenesis

• Internal external genitalia

• Secondary sex characteristics and behavior

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What distinguishes oogenesis from spermatogenesis?
Timing

• Prenatal mitotic proliferation

• Cyclic

Why is the female system cyclical?
Gamete size
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Frog Oocyte
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Organization of the follicular compartment
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Antral Follicles
Light Microscopy
SEM
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Hypothalamic-Pituitary-Ovarian Axis
()
Hypothalamus
GnRH
Estrogen
()
Pituitary
Ovary
FSH and LH
()
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Hypothalamic-Pituitary-Ovarian Axis
(-)
Hypothalamus
GnRH
Progesterone
()
Pituitary
Ovary
FSH and LH
()
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