Endocrine Pancreas Anatomy and Physiology Quiz
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Questions and Answers

What type of cells in the endocrine pancreas produce insulin?

  • Delta cells
  • Alpha cells
  • Gamma cells
  • Beta cells (correct)
  • Which hormone is released by the alpha cells of the endocrine pancreas?

  • Thyroid hormone
  • Growth hormone
  • Glucagon (correct)
  • Insulin
  • What is the primary function of insulin in blood glucose regulation?

  • Stimulating glucose release into the bloodstream
  • Facilitating glucose uptake by cells (correct)
  • Promoting glycogen breakdown
  • Reducing fatty acid synthesis
  • In response to low blood glucose levels, what does glucagon stimulate in the liver?

    <p>Glycogen breakdown</p> Signup and view all the answers

    Which hormone promotes storage of glucose as glycogen in the liver and muscles?

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

    What is the role of the Islets of Langerhans in the pancreas?

    <p>Hormone production</p> Signup and view all the answers

    What is the primary function of aldosterone?

    <p>Increase water reabsorption by the kidneys</p> Signup and view all the answers

    When does the renin-angiotensin-aldosterone system (RAAS) get activated?

    <p>Low blood pressure</p> Signup and view all the answers

    Which gland produces antidiuretic hormone (ADH)?

    <p>Posterior pituitary gland</p> Signup and view all the answers

    What is the main function of atrial natriuretic peptide (ANP)?

    <p>Decrease water and sodium reabsorption by the kidneys</p> Signup and view all the answers

    Which hormone increases calcium reabsorption in the kidneys and promotes calcium release from bones?

    <p>Parathyroid hormone (PTH)</p> Signup and view all the answers

    What hormone is released by the atria of the heart in response to high blood volume or high blood pressure?

    <p>Atrial natriuretic peptide (ANP)</p> Signup and view all the answers

    What is the main cause of nephrogenic diabetes insipidus?

    <p>High urine osmolality</p> Signup and view all the answers

    How can central and nephrogenic diabetes insipidus be differentiated?

    <p>By measuring ADH levels</p> Signup and view all the answers

    Which of the following is a management strategy for SIADH?

    <p>Fluid restriction</p> Signup and view all the answers

    What pharmacological treatment may be considered for SIADH if other interventions fail?

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

    Which hormones are primarily produced by the adrenal cortex?

    <p>Cortisol, aldosterone, and androgens</p> Signup and view all the answers

    What is the characteristic symptom of Addison's disease?

    <p>Insufficient cortisol production</p> Signup and view all the answers

    What test is considered the gold standard for diagnosing Addison's disease?

    <p>ACTH stimulation test</p> Signup and view all the answers

    For a patient diagnosed with Addison's disease, what is the most appropriate initial treatment?

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

    Which condition is more commonly associated with Addison's disease?

    <p>Type 1 diabetes mellitus</p> Signup and view all the answers

    What is the most common cause of Addison's disease in developed countries?

    <p>Autoimmune destruction of the adrenal cortex</p> Signup and view all the answers

    In cases of an Addisonian crisis, which treatment should be administered immediately?

    <p>Intravenous hydrocortisone</p> Signup and view all the answers

    Based on the clinical presentation described, what condition is most likely for the 45-year-old male?

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

    What is the classic triad of symptoms associated with pheochromocytoma?

    <p>Headache, palpitations, and sweating</p> Signup and view all the answers

    Which of the following laboratory tests is most commonly used for the initial diagnosis of pheochromocytoma?

    <p>Plasma metanephrines</p> Signup and view all the answers

    What is the most appropriate initial imaging study to localize a pheochromocytoma?

    <p>Abdominal CT scan</p> Signup and view all the answers

    Which of the following medications should be initiated first in the preoperative management of a patient with pheochromocytoma?

    <p>Alpha-blocker</p> Signup and view all the answers

    Which of the following genetic syndromes is associated with an increased risk of pheochromocytoma?

    <p>Multiple endocrine neoplasia type 2 (MEN2)</p> Signup and view all the answers

    What is the definitive treatment for pheochromocytoma?

    <p>Surgical removal of the tumor</p> Signup and view all the answers

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