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Catogaries Of Harmones
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Catogaries Of Harmones

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Transcript

  • 1. CATEGORIES OF HORMONES
    • PEPTIDES
    • AMINES
    • STEROIDS
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  • 2. PEPTIDES
    • HYDROPHILIC
    • DISSOLVED IN PLASMA
    • RECEPTOR ON CELL SURFACE
    • cAMP OR CALCIUM AS SECOND MESSENGERS
    • ACTIVATE SPECIFIC GENES TO INITIATE PROTEIN SYNTHESIS
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  • 3. PEPTIDE HORMONES
    • HYPOTHALAMIC
    • PITUITARY
    • PANREATIC
    • PARATHYROID
    • GI
    • KIDNEY
    • LIVER
    • HEART
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  • 4. AMINES
    • THYROID HORMONE
    • CATECHOLAMINES
    • ALL DERIVED FROM AMINO ACID TYROSINE
    • UNIQUE SYNTHETIC AND SECRETORY PATHWAYS
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  • 5. STEROIDS
    • LIPOPHILIC
    • RECEPTOR IN CYTOPLASM
    • ACTIVATE SPECIFIC GENES TO INITIATE PROTEIN SYNTHESIS
    • ADRENAL CORTICAL
    • GONADAL
    • PLACENTAL
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  • 6. PLASMA CONCENTRATION OF HORMONES
    • DEPENDS ON RATE OF SECRETION
    • NEGATIVE FEEDBACK
    • NEUROENDOCRINE REFLEXES
    • DIURNAL RHYTHMS
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  • 7. TYPES OF ENDOCRINE DISORDERS
    • HORMONE EXCESS
    • HORMONE DEFICIENCY
    • DECREASED RESPOSIVENESS OF RECEPTORS
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  • 8. COMPARISON OF ENDOCRINE AND NERVOUS SYSTEMS
    • NERVOUS SYSTEM
    • “ WIRED”
    • CHEMICAL SIGNAL AT TARGET CELL
    • RAPID
    • BRIEF DURATION
    • CLOSE ANATOMICAL PROXIMITY
    • ENDOCRINE SYSTEM
    • “ WIRELESS”
    • CHEMICAL SIGNAL AT TARGET CELL
    • SLOW
    • LONG DURATION
    • SPECIFIC RECEPTORS
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