Endocrine System - Chapter 17 Quiz
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Questions and Answers

What is the role of osteocalcin?

  • Stimulates platelet production
  • Blocks the release of iron from cells
  • Increases insulin production and glucose sensitivity (correct)
  • Inhibits calcitriol formation
  • How does leptin affect dopamine?

  • Has no effect on dopamine
  • Increases dopamine production
  • Results in less dopamine (correct)
  • Turns dopamine into a precursor for other hormones
  • What contributes to the maturation and differentiation of T lymphocytes?

  • Hepcidin
  • Thymosins (correct)
  • Angiotensinogen
  • Insulin-like Growth Factor-1
  • How does aging affect the thyroid gland?

    <p>It decreases with age, lowering metabolic rate</p> Signup and view all the answers

    Which hormone is responsible for softening the pubic symphysis to prepare for birth?

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

    Which hormone plays a role in appetite and is released while fasting?

    <p>Pancreatic polypeptide hormone</p> Signup and view all the answers

    What is the function of atrial natriuretic peptide (ANP) released by the heart?

    <p>Decreases blood pressure and blood Na+ levels</p> Signup and view all the answers

    Which hormone stimulates the release of hydrochloric acid from the stomach?

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

    What is the primary function of EPO (erythropoietin) released by the kidneys?

    <p>Stimulates erythrocyte production</p> Signup and view all the answers

    Which hormone binds to brain neurons to promote satiety after a meal and increase hunger if levels are low?

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

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

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

    Which type of hormone is derived from modified amino acids tryptophan and tyrosine?

    <p>Amine hormone</p> Signup and view all the answers

    What is the first messenger in the pathway of action for hydrophilic hormones?

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

    What effect do cells exhibit when they decrease receptors and become less reactive to excessive hormone levels?

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

    What is the command center of the endocrine system?

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

    Which hormone stimulates uterine contraction and dilation of the cervix?

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

    Which hormone regulates the function of the gonads?

    <p>Follicle Stimulating Hormone (FSH)</p> Signup and view all the answers

    Which hormone is responsible for melanin production in response to UV light or pregnancy?

    <p>Melanocyte-Stimulating Hormone (MSH)</p> Signup and view all the answers

    Which gland releases calcitonin to decrease blood calcium levels?

    <p>Thyroid Gland</p> Signup and view all the answers

    What is the primary role of parathyroid hormone (PTH)?

    <p>Decreasing blood calcium levels by releasing calcium from bones</p> Signup and view all the answers

    Which hormone influences metabolic rate, nutrient breakdown, ATP production, and body temperature?

    <p>Thyroid hormone</p> Signup and view all the answers

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

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

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