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Endocrine Arianna G P-5, Dieases :, Major functions, Upper Endocrine…
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Dieases :
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Hyposecretion of TH: due to lack of iodine, thyroid enlarges.
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Hypersecretion of TH (Graves dieases): Autoimmune dieases: Body makes abnormal antibodies directed against thyriod
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Major functions
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Exocrine glands: Produce non-hormonal substances (Sweat, saliva). Have ducts to carry secretion to membrane surface
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Upper Endocrine glands
Pitutitary
Posterior Pituitarty
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Anti diuretic Hormone: Targets kidney tubules to reabsorb more water or inhibit or prevent urine formation
Anterior Pituitary
Growth Hormone : Has direct action on metabolism and indirect growth-promoting action, Live bone
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Gonadtropins (FSH and LH) FSH stimulates production of gametes (egg/sperm) LH promotes production of gonadal hormones
Prolactin (PRL) Stimulates milk production in females,
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Pineal gland
Melatonin:Timing of sexual maturation and puberty, day/night cycles, production of antioxidant and detoxification cells
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Steroid Vs Non-Steriod
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Steroid are lipid bases while non-steroid are amino acid based. Steroid enters cells and binds to intracellular receptors while non binds to membrane receptors. Steroid are slow long lasting effects while non has a faster but short lived effects.
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Lower gland/organs
Tests
Initiates maturation of male reproductive organs causes appearance of male secondary characteristics and sex dirve
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Ovary
Estrogens & Progesterone
Maturation of reproductive organs, appearance of secondary sexual characteristics.
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