AN SC 312 Module 1

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Author:
ebacker
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259888
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AN SC 312 Module 1
Updated:
2014-02-02 22:06:58
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AN SC 312 Animal Reproductive Physiology
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AN SC 312 Module 1
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  1. What are the 5 steps of the protein hormone action pathway?
    • 1. Hormone-receptor binding
    • 2. G-protein activation
    • 3. Adenylate cyclase activation
    • 4. Protein kinase activation
    • 5. Synth of new product
  2. What are the 4 steps of steroid hormone action?
    • 1. Steroid transport (piggy-back)
    • 2. Movement thru cell mem & cytoplasm
    • 3. Binding of steroid to nuclear receptor
    • 4. mRNA & protein synth
  3. What is the gestation period of cattle?
    280-290 d (9.5 mo)
  4. What is the gestation period of sheep?
    145-150 d (5 mo)
  5. What is the gestation period of swine?
    114 d (3 mo, 3 wk, 3 d)
  6. What is the gestation period of dogs?
    60-65 d (9wk)
  7. What is the gestation period of cats?
    63-67 d (9 wk)
  8. Hypothalamus:
    1. Hormone
    2. Target
    3. Action
    • 1. GnRH
    • 2. Anterior pituitary
    • 3. Release of FSH & LH from a.pit. lobe
  9. Anterior Pituitary
    1. Hormones
    2. Targets
    3. Actions
    • 1a. FSH
    • 2a. Sertoli cells & Granulosa cells
    • 3a. Sertoli function; foll growth & estradiol synth

    • 1b. LH
    • 2b. Leydig cells, theca/luteal cells
    • 3b. T synth, ovulation & Psynth

    • 1c. Prolactin
    • 2c. Mammary glands
    • 3c. Lactation & maternal behaviour
  10. Posterior Pituitary
    1. Hormone
    2. Target
    3. Action
    • 1. Oxytocin
    • 2. Testis & Uterus/Mamm glands
    • 3. Sperm transport; uterine contractions, memm cell growth
  11. Ovary
    1. Hormones
    2. Targets
    3. Actions
    • 1a. Estradiol (E2)
    • 2a. Hypothalamus, repro tract, mamm gland
    • 3a. Sexuality - increase sex beh, GnRH prod, & uterine activity, mamm dev

    • 1b. Progesterone (P4)
    • 2b. Hypothalamus, uterine endothelium/myometrium, mamm gland
    • 3b. Preg maintenance -decrease sex beh, GnRH prod, & uterine activity, lacatation
  12. Testis
    1. Hormone
    2. Target
    3. Action
    • 1. Testosterone (T)
    • 2. Hypothalamus, repro tract, muscle
    • 3. Sexualtiy - spermatogenesis, increase sex beh & muscle development, decrease GnRH prod
  13. Uterus
    1. Hormones
    2. Targets
    3. Actions
    • 1a. Prostaglandin E2
    • 2a. Ovary
    • 3a. Increase P4 prod

    • 1b. PGF2a
    • 2b. Ovary, uterine myometrium
    • 3b. Decrease P4 prod (CL regression), uterine contractions (partuition)
  14. Placenta
    1. Hormones
    2. Targets
    3. Actions
    • 1a. Progesterone (P4)
    • 2a. Hypothalamus, uterine endothelium/myometrium, mamm gland
    • 3a. Preg maintenance -decrease sex beh, GnRH prod, & uterine activity, lacatation

    • 1b. Placental Lactogen
    • 2b. Mamm. gland
    • 3b. Stim milk prod

    • 1c. Equine Chorionic Gonadotropin
    • 2c. Ovary
    • 3c. Maintain progesterone prod.
  15. What are the 6 steps of embryonic dev of the female repro system?
    • 1. Dev of hypothalamic-hypophyseal systems
    • 2. Migration of primordial cells from yolk sac
    • 3. Sex cord dev in gonad & mesonephric renal system regression/transformation
    • 4. Sexual differentiation
    • 5. Dev of female tract & ovaries
    • 6. Formation of broad ligament

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