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23 Cards in this Set
- Front
- Back
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FSH |
(female) -stimulates follicle growth -stimulates estrogen production in conjunction with LH -stimulates inhibin production (male) -stimulates spermatogenesis -stimulates androgen-binding protein
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LH |
(female) -maturation of follicle -ovulation -Corpus luteum formation -progesterone production (male) -testosterone production
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hMG |
-recovered from urine of menopausal women -superovulation |
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Prolactin |
Female -milk synthesis -development of mammary glands *(NOT RELEASING MILK) -maternal (nesting) behavior |
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Estrogens: -Estradiol -Estrone -Estriol -Estradiol |
*theca & granulosa cells in follicle -estrus -uterine contractions -positive & negative feedback on gonadotropins -duct growth of mammary glands -secondary sex characteristic -growth of female reproductive tract -anabolic effects |
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Progestogens: -progesterone (P4) -17a-Hydroxy-progesterone -20B-dihydro-progesterone |
*luteal cells of corpus luteum -maintenance of pregnancy -inhibits uterine contractions -inhibits estrus (strong neg. feedback on LH) -Alveolar growth of mammary glands -secondary sex characteristics -growth of female reproduction tract -stimulates endometrial secretion -negative feedback on gonadotropins |
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Inhibin Follecular |
*granulosa cells of follicle - found in follicular fluid -selectively suppresses release of FSH from AP
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Relaxin |
*uterus, placenta, lethal cells of CL during pregnancy -acts on tissues after pre sensitization to estrogens -relaxation of pelvic ligaments -softens connective tissue of cervix at parturition -softens connective tissue in uterine muscle
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MIS |
*produced by largest follicle (dominant follicle) -directly inhibits growth of other follicles *litter animals do not have this compound
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Androgens -testosterone (T) Androstenedione (A) |
leydig cells of testes -spermatocytogenesis -male sexual behavior-libido (A) -secondary sex characteristics (T) -maintains accessory sex organ -negative feedbacks on gonadotropins -anabolic affects
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hCG |
*syncytiotrophoblastic cells of placenta -converts Cl of mentrual cycle to Cl of pregnancy
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Placental Lactogen |
*placenta -higher concentrations- last trimester of pregnancy higher concentrations in dairy than beef cows. -development of mammary gland for milk production -regulation of maternal nutrients to fetus -regulation of fetal growth
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Protein B |
*placenta of every mammal -UNNOWN possible role in -maternal recognition -immune function (protects fetus from immune response) |
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PGF2 Alpha |
*endometrial cells of uterus *vesicular glans in male -regression of CL -causes constriction of blood vessels -stimulates smooth muscle contractions for sperm transport, ovum transport, parturition, and ovulation |
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Prostaglasin E2 |
*endometrial cells of uterus *vesicular glands of male -smooth muscle stimulator -effects on CL are opposite to that of PGF2 -antiluteolytic action may be a factor in maintenance of CL during pregnancy -involved in process of ovulation -involved in gamete transport |
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Cortisol |
*adrenal cortex -initiation of parturition -synergizes with probation to initiate milk synthesis -reduces inflammation |
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GnRH |
*hypothalamus -causes release of FSH and LH from AP |
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PRF |
*hypothalamus -releases prelatic from AP -usually in low concentrations _especially in male -higher concentration before and after birth |
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PIF |
*hypothalamus -inhibits prolactin real ease from AP -usually in high concentrations -lower before and after birth |
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CRH |
-stimulates release of ACTH from AP |
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Oxytocin |
*nucleic cells of hypothalamus *corpus luteum of cow, ewe, and human -milk let down -stilmulates uterine contractions during sprem, egg tranport, parturition -estrogen enhances responsiveness of smooth muscles to OT -luteolytic in cow, ewe, goat |
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Endogenous opioids |
*hypothalamus & hypophyseal portal vessel -inhibit release of GnRH -Regulation of hormones released from anterior (LH, FSH, PROL) and posterior (oxytocin) pituitary
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melatonin |
*pineal gland -control of seasonal breeder in response to day length -short days-higher melatonin, switches on short day breeders |
