Pancreas and Islets of Langerhans

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Questions and Answers

Which hormone is secreted by the β-cells and responsible for decreasing blood sugar levels?

  • Pancreatic polypeptide
  • Somatostatin
  • Glucagon
  • Insulin (correct)

What is the function of the α-cells in the islets of Langerhans?

  • Secrete somatostatin
  • Decrease blood sugar levels
  • Secrete glucagon hormone (correct)
  • Secrete insulin

What is the function of D-cells in the islets of Langerhans?

  • Secrete glucagon hormone
  • Secrete somatostatin (correct)
  • Secrete insulin
  • Decrease blood sugar levels

Which type of diabetes is characterized by very little or no insulin production?

<p>Type-1 diabetes (A)</p> Signup and view all the answers

What is the primary function of C-peptide?

<p>To connect insulin's A-chain with its B-chain (A)</p> Signup and view all the answers

Which cells secrete pancreatic polypeptide?

<p>F-cells (D)</p> Signup and view all the answers

What is the hormone secreted by α-cells that is also called the hyperglycemic hormone?

<p>Glucagon (C)</p> Signup and view all the answers

What percentage of the cells in the pancreas form islets of α-cells?

<p>1% (A)</p> Signup and view all the answers

How many types of cells are present in the islets of Langerhans?

<p>Four (B)</p> Signup and view all the answers

What is the primary function of somatostatin secreted by D-cells?

<p>Decrease the secretion of glucagon and insulin (B)</p> Signup and view all the answers

Which hormone is primarily responsible for promoting gluconeogenesis?

<p>Both b and c (D)</p> Signup and view all the answers

Which of the following hormones is involved in the regulation of blood pressure and electrolyte balance?

<p>Both a and c (A)</p> Signup and view all the answers

Which hormone is responsible for enhancing the uptake of glucose by cells and promoting its storage as glycogen?

<p>Insulin (C)</p> Signup and view all the answers

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