regulation of reproduction chapter 5. brain – hypothalamus - pituitary gland lh (luteinizing...
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REGULATION OF REPRODUCTION
CHAPTER 5
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Brain – Hypothalamus - Pituitary Gland
LH (Luteinizing Hormone)FSH (Follicle Stimulating Hormone)PROLACTINTSH (Thyroid Stimulating Hormone)ACTH (Adrenal Cortical Tropic Hormone)STH or GH (SOMATOTROPIN)
OXYTOCINADH (Antidiuretic Hormone)
GnRH (Gonadotropin Releasing Hormone)
Melatonin
PINEAL
HYPOTHALAMUS
ANTERIOR PITUITARY
POSTERIOR PITUITARY
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Tactile stimulus of the penis
Afferent neurons
Muscles in excurrent ducts
Ejaculation
Suckling stimulus
Afferent neurons
Oxytocin production release from the posterior lobe
Myoepithelial cell around alveoli
Milk letdown
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Tactile stimulus of the penis
Afferent neurons
Muscles in excurrent ducts
Ejaculation
Suckling stimulus
Afferent neurons
Oxytocin production release from the posterior lobe
Myoepithelial cell around alveoli
Milk letdown
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P4 -- - - - - - - - -
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Hormones classified by source
Hypothalamus
Gonadotropin Releasing HormoneOxytocin
Pituitary
Luteinizing hormoneFollicle stimulating hormoneProlactin OxytocinTSH, ACTH, STH, ADH
Gonads
EstrogenProgesteroneTestosteroneInhibinOxytocinRelaxin
Uterus
Prostaglandin F2a
Placenta
Progesterone
Estrogen
Placental Lactogen
Equine Chorionic Gonadotropin
Human Chorionic Gonadotropin
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Hormones classified by mode of action
Neurohormones
Oxytocin
Releasing Hormones
Gonadotropin Releasing Hormone
GonadotropinsLuteinizing HormoneFollicle Stimulating HormoneHuman chorionic gonadotropinEquine chorionic gonadotropin
Sexual PromotersEstrogenProgesteroneTestosterone
Luteolytic - Prostaglandin F2a
Pregnancy Maintenance / Lactogenic
General Metabolic – ACTH, STH, TSH
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Hormones classified by biochemical structure
Peptides - small proteins – few amino acids
Gonadotropin releasing hormone
Glycoproteins – polypeptides with carbohydrate moieties
Luteinizing hormoneFollicle stimulating hormoneThyroid stimulating hormoneInhibinActivinProlactin
Steroids – synthesized from cholesterol
ProgesteroneTestosteroneEstradiol
Prostaglandins – unsaturated hydroxy fatty acids from arachidonic acid
Prostaglandin F2aProstaglandin E2
Pheromones
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