Endocrinology Introduction: Endocrine System and Hormones
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Questions and Answers

Which type of hormone is synthesized in the endocrine glands as larger precursor molecules called preprohormones and circulate in blood as free hormone?

  • Protein hormones (correct)
  • Steroid hormones
  • Modified amine hormones
  • Amines hormones

    • What is the characteristic of the half-life of protein hormones?

  • Variable
  • Short (minutes) (correct)
  • Dependent on the target cells
  • Long (days)

    • How are steroid hormones synthesized?

  • Stored as larger precursor molecules
  • From cholesterol in the cytoplasm by multienzyme processes (correct)
  • Directly from the endocrine glands
  • From amino acids as preprohormones

    • What allows steroid hormones to enter the bloodstream?

    <p>Freely diffuse across the plasma membrane</p> Signup and view all the answers

    Which type of hormone is bound to specific plasma proteins once released into the bloodstream?

    <p>Steroid hormones</p> Signup and view all the answers

    What are cells that contain receptors for specific hormones called?

    <p>Target cells</p> Signup and view all the answers

    Which category of endocrine disorder involves a problem with the gland that produces the hormone?

    <p>Primary disorder</p> Signup and view all the answers

    What is the main challenge in correcting hypersecretion of a hormone?

    <p>Inhibiting the gland without causing destruction of endocrine tissue</p> Signup and view all the answers

    What is the typical treatment for hyposecretion?

    <p>Hormone replacement therapy</p> Signup and view all the answers

    Which hormone stimulates the secretion of ACTH?

    <p>Corticotrophin releasing hormone (CRH)</p> Signup and view all the answers

    What does Prolactin releasing hormone (PRH) stimulate the secretion of?

    <p>Prolactin</p> Signup and view all the answers

    Which hormone is responsible for milk production in mammary glands?

    <p>Prolactin</p> Signup and view all the answers

    What is the typical cause of growth hormone deficiency?

    <p>Traumatic injury or pituitary tumors</p> Signup and view all the answers

    How is growth hormone deficiency determined?

    <p>Stimulation tests involving injection of insulin</p> Signup and view all the answers

    What does growth hormone stimulate in most tissues?

    <p>Body growth</p> Signup and view all the answers

    What is the main challenge in correcting hypersecretion of a hormone?

    <p>Inhibiting the gland without causing destruction of endocrine tissue</p> Signup and view all the answers

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