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Hormones and Behaviour
Endocrine vs Exocrine
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Hormones and Behaviour
The Endocrine Glands
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Hormones and Behaviour
Tobacco Hornworm
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Hormones and Behaviour
Tobacco Hornworm
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Hormones and Behaviour
Tobacco Hornworm - Moulting Ventromedial neurons (Brain) EH ETH (Eclosion Triggering Hormone) Pre-Moult Behaviour Stimulates Inka cells on trachea Falling ecdysone Surge in EH/ETH Ecdysis behaviour Segmental Glands CCAP (Crustacean cardioactive peptide) CNS Peripheral NS Change in circulation And air swallowing
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Hormones and Behaviour
Hypothalmopituitary system
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Hormones and Behaviour
Anolis Lizards
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Hormones and Behaviour
Red Deer
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Testosterone increases
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Male courtship
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary FSH
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary Egg growth FSH Gonadal estrogens
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary Egg growth FSH Gonadal estrogens Nest building & copulation Nest building & copulation
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary Egg growth FSH Gonadal estrogens Nest building & copulation Nest building & copulation Progesterone (testis) Pituitary LH
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary Egg growth FSH Gonadal estrogens Nest building & copulation Nest building & copulation Progesterone (testis) Pituitary LH Inhibits testosterone action Ovulation
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary Egg growth FSH Gonadal estrogens Nest building & copulation Nest building & copulation Progesterone (testis) Pituitary LH Inhibits testosterone action Ovulation Block courtship & aggression Pituitary prolactin
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary Egg growth FSH Gonadal estrogens Nest building & copulation Nest building & copulation Progesterone (testis) Pituitary LH Inhibits testosterone action Ovulation Block courtship & aggression Pituitary prolactin Prolactin production progesterone
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary Egg growth FSH Gonadal estrogens Nest building & copulation Nest building & copulation Progesterone (testis) Pituitary LH Inhibits testosterone action Ovulation Block courtship & aggression Pituitary prolactin Prolactin production Egg incubation progesterone
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary Egg growth FSH Gonadal estrogens Nest building & copulation Nest building & copulation Progesterone (testis) Pituitary LH Inhibits testosterone action Ovulation Block courtship & aggression Pituitary prolactin Prolactin production Egg incubation progesterone Stimulates more prolactin
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary Egg growth FSH Gonadal estrogens Nest building & copulation Nest building & copulation Progesterone (testis) Pituitary LH Inhibits testosterone action Ovulation Block courtship & aggression Pituitary prolactin Prolactin production Egg incubation progesterone Stimulates more prolactin Crop milk
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary Egg growth FSH Gonadal estrogens Nest building & copulation Nest building & copulation Progesterone (testis) Pituitary LH Inhibits testosterone action Ovulation Block courtship & aggression Pituitary prolactin Prolactin production Egg incubation progesterone Stimulates more prolactin Crop milk Squab feeding
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary Egg growth FSH Gonadal estrogens Nest building & copulation Nest building & copulation Progesterone (testis) Pituitary LH Inhibits testosterone action Ovulation Block courtship & aggression Pituitary prolactin Prolactin production Egg incubation progesterone Stimulates more prolactin Crop milk drop in prolactin Squab feeding drop in prolactin
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Reproductive behaviour of the Ring Dove
Male Female Photoperiod increases Female present Testosterone increases Activate hypothalamus Male courtship Pituitary Egg growth FSH Gonadal estrogens Nest building & copulation Nest building & copulation Progesterone (testis) Pituitary LH Inhibits testosterone action Ovulation Block courtship & aggression Pituitary prolactin Prolactin production Egg incubation progesterone Stimulates more prolactin Crop milk drop in prolactin Squab feeding drop in prolactin
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Egg laying in Aplysia
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Egg laying in Aplysia When ready to lay eggs Stops moving and eating
Increase in heart and respiration rate Muscles on reproductive tract contract Eggs appear - egg string Grabs string in upper lip Waves head in stereotyped fashion Pulls string and coats with mucous Attach to rock
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Egg laying in Aplysia Fixed Action Patterns When ready to lay eggs
Stops moving and eating Increase in heart and respiration rate Muscles on reproductive tract contract Eggs appear - egg string Grabs string in upper lip Waves head in stereotyped fashion Fixed Action Patterns Pulls string and coats with mucous Attach to rock
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Egg laying in Aplysia Genes/nerves hormones
ELH (egg laying hormone) gene Produces one large protein (codes for 271 amino acids) Protein broken down to ELH a - bag factor b -bag factor Also involved - peptide A and peptide B
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Egg laying in Aplysia Peptide A and Peptide B
Release a - bag factor and b - bag factor Stimulate bag cells (clusters of neurons Release ELH Excitatory (a) and Inhibitory (b) effects Hormone -increases contraction rate of reproductive tract muscles ? Probably coordinate firings for FAP’s Increases firing rate of abdominal ganglion
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