Anatomy of the Pancreas

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Questions and Answers

What is the approximate length of the pancreas?

  • Seven inches
  • Ten inches
  • Three inches
  • Five inches (correct)

What is the location of the head of the pancreas?

  • In the curve of the duodenum (correct)
  • In the small intestine
  • Near the spleen
  • Near the stomach

What percentage of the pancreas's function is dedicated to hormone secretion?

  • 5%
  • 1% (correct)
  • 20%
  • 10%

What is the primary function of the remaining 99% of the pancreas?

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

How many ducts extend through the pancreas?

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

What is the name of the duct that fuses with the bile duct?

<p>Main pancreatic duct (C)</p> Signup and view all the answers

What type of cells are responsible for pancreatic juice secretion?

<p>Pancreatic acini (D)</p> Signup and view all the answers

What percentage of the gland is formed by the pancreatic acini?

<p>99% (A)</p> Signup and view all the answers

What is the name of the smaller regions of the pancreas that account for about 1% of the gland?

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

What is the location of the tail of the pancreas?

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

What is the primary function of sodium bicarbonate in pancreatic juices?

<p>To neutralize acidic acid from the stomach (A)</p> Signup and view all the answers

Which enzyme is responsible for activating trypsinogen in the small intestine?

<p>Enterokinase (D)</p> Signup and view all the answers

What is the purpose of trypsin inhibitor in the pancreas?

<p>To prevent accidental activation of trypsin (C)</p> Signup and view all the answers

Which hormone is released in response to very sugary chyme in the duodenum?

<p>Gastric inhibitory peptide (D)</p> Signup and view all the answers

What is the function of pancreatic amylase?

<p>To break down starches (D)</p> Signup and view all the answers

What is the primary function of CCK?

<p>To stimulate secretion of pancreatic juices rich in enzymes (B)</p> Signup and view all the answers

How much pancreatic juice is secreted per day?

<p>1-2 quarts (D)</p> Signup and view all the answers

What is the purpose of secretin?

<p>To stimulate secretion of pancreatic juices rich in bicarbonate (A)</p> Signup and view all the answers

What is the function of ribonuclease and deoxyribonuclease?

<p>To target DNA and RNA (D)</p> Signup and view all the answers

What is the pH of pancreatic juices?

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

What is the primary reason for the alkaline pH of pancreatic juices?

<p>To neutralize the acidic chyme from the stomach (B)</p> Signup and view all the answers

What is the role of enterokinase in the activation of pancreatic proteases?

<p>It activates trypsinogen, which then activates other proteases (B)</p> Signup and view all the answers

Which of the following hormones is NOT involved in regulating pancreatic secretions?

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

What is the role of trypsin inhibitor in the pancreas?

<p>To inhibit the activation of trypsinogen (A)</p> Signup and view all the answers

What is the primary function of pancreatic lipase?

<p>To break down lipids (B)</p> Signup and view all the answers

Which of the following statements about pancreatic proteases is FALSE?

<p>They are all activated in the small intestine (B)</p> Signup and view all the answers

What is the role of gastric inhibitory peptide in regulating pancreatic secretions?

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

What is the primary function of the pancreas in the digestive process?

<p>To produce digestive enzymes that break down nutrients (C)</p> Signup and view all the answers

Which of the following is a characteristic of pancreatic proteases?

<p>They are all precursor molecules (B)</p> Signup and view all the answers

What is the purpose of the three primary hormones that regulate pancreatic secretions?

<p>To ensure the correct composition of pancreatic juices (D)</p> Signup and view all the answers

What is the main difference between the pancreatic acini and the islets of Langerhans?

<p>Structure and staining characteristics (C)</p> Signup and view all the answers

How does the main pancreatic duct typically drain into the duodenum?

<p>After fusion with the bile duct (B)</p> Signup and view all the answers

What is the functional significance of the pancreas's dual duct system?

<p>Facilitating the fusion of pancreatic and bile ducts (D)</p> Signup and view all the answers

What is the approximate proportion of the pancreas dedicated to endocrine functions?

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

Where is the pancreas located in relation to the spleen?

<p>The pancreas is nestled in the curve of the duodenum, near the spleen (A)</p> Signup and view all the answers

What is the primary function of the pancreatic juices produced by the pancreas?

<p>Aid in digestion within the lumen of the small intestine (A)</p> Signup and view all the answers

How does the pancreas's structure relate to its function?

<p>The pancreas's structure is primarily composed of pancreatic acini for pancreatic juice secretion (A)</p> Signup and view all the answers

What is the significance of the pancreas's dual function in digestion and hormone secretion?

<p>It allows the pancreas to contribute to both digestion and glucose regulation (B)</p> Signup and view all the answers

What is the relationship between the pancreas and the duodenum?

<p>The pancreas is nestled in the curve of the duodenum (A)</p> Signup and view all the answers

What is the primary significance of the pancreas's anatomical location?

<p>It positions the pancreas to deliver its secretions into the duodenum (D)</p> Signup and view all the answers

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