Lecture 15: Endocrine Glands
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Questions and Answers

Which layer of the adrenal gland produces sex steroids?

  • Zona Reticularis (correct)
  • Zona Fasciculata
  • Adrenal Medulla
  • Zona Glomerulosa

    • What is the name given to the cells in the adrenal medulla that stain brown with chrome salts?

  • Medulla cells
  • Adrenaline cells
  • Chromaffin cells (correct)
  • Catecholamine cells

    • What is the name of the major exocrine gland with important endocrine cells and functions?

  • Thyroid gland
  • Pancreas (correct)
  • Adrenal gland
  • Pituitary gland

    • What are the clusters of cells in the pancreas that produce hormones?

    <p>Islets of Langerhans</p> Signup and view all the answers

    What percentage of islet cells are Alpha cells that produce glucagon?

    <p>15-20%</p> Signup and view all the answers

    What hormone is produced by Delta cells in the Islets of Langerhans?

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

    What are the clusters of cells in the pancreas surrounded by?

    <p>A thin capsule</p> Signup and view all the answers

    What is the name of the cells that produce pancreatic polypeptide in the Islets of Langerhans?

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

    What is the function of the exocrine part of the pancreas?

    <p>To produce digestive enzymes</p> Signup and view all the answers

    What is the name of the cell type that produces motilin, serotonin, and substance P in the Islets of Langerhans?

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

    What is the main function of the zona reticularis?

    <p>Producing sex steroids</p> Signup and view all the answers

    What is the characteristic of the cells in the adrenal medulla?

    <p>They have granular, lightly basophilic cytoplasm</p> Signup and view all the answers

    What is the function of the Islets of Langerhans?

    <p>Regulating blood sugar levels</p> Signup and view all the answers

    What is the characteristic of the endocrine cells in the Islets of Langerhans?

    <p>They have pale cytoplasm</p> Signup and view all the answers

    What is the hormone produced by Beta cells in the Islets of Langerhans?

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

    What is the percentage of islet cells that are Beta cells?

    <p>65-80%</p> Signup and view all the answers

    What is the name of the cells that produce glucagon in the Islets of Langerhans?

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

    What is the characteristic of the exocrine part of the pancreas?

    <p>It stains strongly</p> Signup and view all the answers

    What is the name of the cells that produce somatostatin in the Islets of Langerhans?

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

    What is the function of the pancreatic acini?

    <p>Producing digestive enzymes</p> Signup and view all the answers

    What is the primary function of the zona reticularis?

    <p>Producing glucocorticoids</p> Signup and view all the answers

    What is the characteristic of the chromaffin cells in the adrenal medulla?

    <p>They stain brown with chrome salts</p> Signup and view all the answers

    What is the function of the pancreatic acini?

    <p>Aiding in digestion</p> Signup and view all the answers

    What is the percentage of islet cells that are Delta cells?

    <p>3-5%</p> Signup and view all the answers

    What is the characteristic of the endocrine cells in the Islets of Langerhans?

    <p>They have pale cytoplasm</p> Signup and view all the answers

    What is the characteristic of the arrangement of cells in the zona reticularis?

    <p>Irregular cords</p> Signup and view all the answers

    What is the common feature of the cells in the islets of Langerhans?

    <p>Numerous capillaries</p> Signup and view all the answers

    What is the function of the pancreatic acini?

    <p>Digestive enzyme production</p> Signup and view all the answers

    What is the characteristic of the chromaffin cells in the adrenal medulla?

    <p>Granular, lightly basophilic cytoplasm</p> Signup and view all the answers

    What is the percentage of islet cells that are neither Alpha, Beta, Delta, nor PP cells?

    <p>5-15%</p> Signup and view all the answers

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