Summary: Hormones & Homeostasis

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  • What are the most important principles in endocrinology?

    • Hormone secretion
    • Hormone action
    • Principlesof feedback control
  • Which kind of membrane receptors do you have?

    • G-protein-coupled
    • Ionotropic receptors
    • steroid receptors
    • Kinase-linked receptors
  • How is the endocrine system evaluated?

    By measuring hormone concentrations
  • How are endocrine disorders amendable to effective treatment?

    • deficiencies are treated with physiological hormone replacements
    • excessive conditions like benign/malignent glandular adenomas (cancer)
  • What is the modern definition of an hormone?

    • productions does not necessarily take place in glands (gut)
    • other signals come from nearby cells (paracrine) or the own self (autocrine) of are from nutrition
    • many hormone receptors are not considered as endocrine targets
    • The classic production in glands, secretion in the bloodflow and binding on targets does still apply for some hormones
  • Which two types of hormones are there?

    1. Growth factors
    2. Sex steroids which leads to epiphysial closure
  • What are the most important hormones in the regulation of the homeostasis?

    1. TH
    2. Cortisol
    3. PTH (regulates Ca2+ and F2)
    4. Vasopressin
    5. Mineralocortoids
    6. insulin
  • What are the main functions of hormones?

    • Growth and differentiation
    • Maintainance of the Homeostasis
    • Reproduction
  • Which hormone is most important during child rearing?

  • What is the field of endocrinology concerned with?

    • biosynthesis
    • storage
    • chemistry
    • physiological function
    • the productive cells and tissues

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