The Endocrine System: Chapter 17 Quiz
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Questions and Answers

How does exercise affect leptin sensitivity?

  • It fluctuates leptin sensitivity
  • It decreases leptin sensitivity
  • It increases leptin sensitivity (correct)
  • It has no effect on leptin sensitivity
  • What is the role of osteocalcin?

  • Decreases sensitivity to glucose
  • Increases glucose excretion
  • Decreases insulin production
  • Increases insulin production and sensitivity to glucose (correct)
  • How does aging affect the production of human growth hormone, cortisol, and aldosterone?

  • They remain constant with age
  • They decline with age (correct)
  • They fluctuate with age
  • They increase with age
  • What effect does aging have on insulin resistance?

    <p>It increases with age</p> Signup and view all the answers

    Which region of the adrenal gland produces mineralocorticoids like aldosterone?

    <p>Zona Glomerulosa</p> Signup and view all the answers

    What are the effects of epinephrine and norepinephrine produced by the adrenal medulla?

    <p>Increase heart rate, blood pressure, and pulse; dilate airways; prompt vasodilation to essential organs</p> Signup and view all the answers

    What disorder is characterized by hypersecretion of cortisol, leading to high blood glucose and lipid deposits on the face and neck?

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

    What is the main function of the pineal gland?

    <p>Production of melatonin</p> Signup and view all the answers

    Which layer of the adrenal cortex primarily produces glucocorticoids like cortisol?

    <p>Zona Fasciculata</p> Signup and view all the answers

    Which hormone is responsible for developing the male reproductive system, maturing sperm cells, and male secondary sex characteristics?

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

    What is the primary mode of travel for hormones throughout the body?

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

    Which type of signaling involves a chemical that elicits a response in the same cell?

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

    What are the two types of hormones derived from modified amino acids?

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

    What is the function of a hormone receptor?

    <p>Binds to the hormone and initiates cellular mechanisms</p> Signup and view all the answers

    Which hormone is considered a first messenger?

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

    Intracellular hormone receptors are specific for which type of hormones?

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

    Which factor refers to cells decreasing receptors and becoming less reactive to excessive hormone levels?

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

    "Chemical and neural stimuli can result in hormone secretion or inhibition" is an example of which method of hormone regulation?

    <p>Feed back loops</p> Signup and view all the answers

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