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Hormones & Endocrinology (Hormone Disorder (Endocrine Disease…

- - - - control nervous system
      - receives information from nerves
      - release hormones from pituitary
    - - control endocrine system
      - secrete broad range of hormones regulating others glands
- - - - Excessive concentration thyroxine
    - - Prolonged exposure of cortisol
      - Cushing's syndrome
    - - Deficiency of iodine
- - - - blod transfer hormone to whole body
        
        reach target tissue & bind to specific receptor
        
        target tissue respond= feedback mechanism
        
        feedback reach gland to stop/increase production of hormone
- - - - glycoprotein
        
        large proteins + carbohydrate: FSH, LH
      - amine
        
        modified amino acids: epinephrine, melatonin
      - polypeptide
        
        small proteins: insulin, ADH
    - - lipid-soluble
      - bind to receptor in cytoplasm & nucleus
      - activate gene
  - - - hydrophilic & not lipid soluble
      - trigger secondary cellular response
      - activate cellular response
    - - steroids
        
        modified cholesterol: sex hormones, aldosterone
      - eicosanoids
        
        prostaglandins
- - - - ducts
      - lumen & surfaces
      - e.g: enzyme & sweat
    - - ductless
      - blood stream
      - hormone
- - - - function in
        
        mammals: milk production
        
        birds: fat metabolism
        
        fish: salt & water balance
        
        amphibians: metamorphosis & maturation
        
        thyroxine
    - - growth and development