Response Systems and Endocrinology Overview
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Questions and Answers

What is the main symptom presented by the new patient in the clinic?

  • Pink or purple stretch marks on the skin (correct)
  • Weight loss and muscle wasting
  • Yellowing of the skin
  • Elevated levels of insulin in the blood

    • What does hypersecretion of a hormone typically lead to?

  • Diminished responsiveness of target cells to that hormone
  • Atrophy of the gland
  • Increased effectiveness of the hormone (correct)
  • Healthy hormone levels in the body

    • What is a common outcome of down-regulation of receptors in target cells?

  • Enhanced hormone production by target cells
  • Improved communication between cells
  • Increased responsiveness of target cells to the hormone
  • Diminished responsiveness of target cells to the hormone (correct)

    • What can absence of negative feedback lead to in terms of trophic hormones?

    <p>Overproduction of trophic hormones</p> Signup and view all the answers

    Which condition is characterized by weight gain, moon face, buffalo hump, and thinning skin?

    <p><strong>Cushing's syndrome</strong></p> Signup and view all the answers

    What may lead to hyposecretion of a hormone?

    <p><strong>Atrophy of the gland</strong></p> Signup and view all the answers

    What is the main difference between the nervous system and the endocrine system?

    <p>Duration of response</p> Signup and view all the answers

    How do most hormones exert their effects?

    <p>At very low concentrations</p> Signup and view all the answers

    Which type of hormone typically has a relatively short half-life?

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

    How are peptide hormones transported in the blood?

    <p>Bound to carrier proteins</p> Signup and view all the answers

    What is the main difference in the cellular mechanism of action between peptide and steroid hormones?

    <p>Steroid hormones use second messenger systems</p> Signup and view all the answers

    Which gland is responsible for producing both vasopressin and oxytocin?

    <p>Pituitary gland</p> Signup and view all the answers

    What is the role of trophic hormones in the anterior pituitary?

    <p>Stimulate other hormone secretions</p> Signup and view all the answers

    In hormone interactions, what do antagonistic hormones do?

    <p>Oppose the action of one another</p> Signup and view all the answers

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