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20 Cards in this Set
- Front
- Back
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What stimulates the release of LH & FSH from the anterior pituitary
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GnRH from the hypothalamus
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What does LH stimulate?
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secretion of androgens from the leydig cellss of the testes and teca cells of the ovaries
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What does FSH stimulate?
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Sertoli cells in the testes and granulosa cells of ovaries.
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What does FSH support
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Gametogenesis and steroid production
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What are sertoli cells
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support cells of spermatogenesis
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spermatogenesis occurs where
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Seminiferous tubules, maturation occurs throughout movement through epididymis
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Leydig cells contain lipid droplets
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Remember testosterone is a cholesterol based hormone
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Erection is due to what innervation?
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Parasympathetic control.
Nitric oxide is going to be responsible for smooth muscle relaxation. |
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What response prevents erection
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under sympathetic control Nor - Epi is responsible for contraction of smooth muscle.
this prevents the inflow of lg amounts of blood |
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folicular phase in the female corresponds to what hormone level increase
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estradiol
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when estradiol production is high enough what does it initate?
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The LH/FSH surge
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What does the LH/FSH surge trigger?
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Ovulation and formation of the corpus luteum
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What does the formation of the corpus luteum correspond with?
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production of progesterone
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if ovulation does not occur which hormone increases?
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Progesterone
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In female, LH has major effect on:
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Theca Cells
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Theca cells are responsible for producing what?
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Androgens
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Can you get estrogen without the Granulosa cells alone?
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No, because only the theca cells are capable of producing the androgens.
Granulosa cells are not capable of producing androgens |
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What hormone stimulates the Granulosa cell to convert the androgen into estradiol?
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FSH
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What happens during the follicular (estradiol) phase?
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Increased ciliogenesis
Increased muscous production Increased glycogen deposition in vagina Fat deposit and duct development of breast |
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What happens during the luteal (progesterone) phase
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Increased secretions in oviduct
Decreased cervical mucous Increased desquamation of vagina alveolar development in breast |
