Lecture 5
14 Questions
4 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the function of the brush border in enterocytes?

  • Interact with blood near the bottom of the cell
  • Provide a barrier that prevents bacteria from entering the bloodstream or lymphatic system (correct)
  • Stabilize and trap fluid in the microvilli
  • Secrete digestive enzymes to aid in nutrient absorption
  • Which structure in the enterocytes differentiates them from other cells?

  • Glycocalyx in the microvilli
  • Microvilli with digestive enzymes (correct)
  • Rectangular shape
  • Lipoprotein assembly capability
  • Where does the lipoprotein assembly take place?

  • Blood plasma
  • Gut
  • Nucleus
  • Enterocytes (correct)
  • What is the role of chylomicron, a type of lipoprotein, in nutrient absorption?

    <p>Transporting fat to be broken down into blood</p> Signup and view all the answers

    What is the function of the gallbladder?

    <p>Store and concentrate bile</p> Signup and view all the answers

    What causes the yellowish coloration of the white part of the eye in jaundice?

    <p>Accumulation of bilirubin and biliverdin in the blood</p> Signup and view all the answers

    Which organ is responsible for converting bile to bilirubin to aid in its elimination?

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

    What can happen if gallstones block the pancreatic duct?

    <p>Inflammation of the pancreas</p> Signup and view all the answers

    What is the main function of the large intestine?

    <p>Absorb water and electrolytes</p> Signup and view all the answers

    What happens if there is excessive water absorption in the large intestine?

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

    Which organ is responsible for the breakdown of material to amino acids for absorption?

    <p>Small intestine</p> Signup and view all the answers

    What is the main role of bile acids in digestion?

    <p>Aid in fat breakdown for absorption</p> Signup and view all the answers

    What happens when cholodocholithiasis blocks the flow of bile?

    <p>Inflammation of the pancreas occurs</p> Signup and view all the answers

    What is the function of cholecystokinin (CCK)?

    <p>It stimulates release of bile into small intestine</p> Signup and view all the answers

    Study Notes

    Brush Border Function

    • The brush border in enterocytes is composed of microvilli, increasing the surface area for nutrient absorption.
    • It contains enzymes that aid in the digestion of carbohydrates and proteins.

    Unique Enterocyte Structure

    • The differentiation of enterocytes from other cells is characterized by the presence of microvilli, which form the brush border.

    Lipoprotein Assembly

    • Lipoprotein assembly occurs within the enterocytes after the uptake of fatty acids and monoglycerides.

    Role of Chylomicrons

    • Chylomicrons transport absorbed dietary fat from the intestines to other parts of the body via the lymphatic system.

    Gallbladder Function

    • The gallbladder stores and concentrates bile, releasing it into the small intestine to aid in the digestion and absorption of fats.

    Jaundice and Eye Coloration

    • Yellowish discoloration of the sclera (the white part of the eye) in jaundice is caused by the accumulation of bilirubin in the bloodstream.

    Bile Conversion

    • The liver is responsible for converting bile into bilirubin, facilitating the elimination of waste products.

    Gallstones and Pancreatic Duct

    • Blockage of the pancreatic duct by gallstones can lead to pancreatitis, causing inflammation and pain.

    Main Function of the Large Intestine

    • The primary role of the large intestine is to absorb water and electrolytes, and to process waste for elimination.

    Excessive Water Absorption Consequence

    • Excessive water absorption in the large intestine can lead to constipation, resulting in difficulty passing stools.

    Amino Acid Breakdown Organ

    • The stomach, aided by enzymes, is responsible for the breakdown of proteins into amino acids for absorption in the intestines.

    Bile Acids in Digestion

    • Bile acids emulsify dietary fats, making them more accessible for digestive enzymes, thus enhancing fat absorption.

    Cholodocholithiasis Impact

    • Blockage from cholodocholithiasis can obstruct bile flow, leading to jaundice, increased pressure in the bile ducts, and potential liver damage.

    Cholecystokinin (CCK) Function

    • CCK stimulates the gallbladder to contract and release bile, and promotes the release of digestive enzymes from the pancreas.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge on the structure and function of enterocytes in the small intestine. Explore the role of brush border, microvilli, and glycocalyx in nutrient absorption and barrier protection against bacteria.

    Use Quizgecko on...
    Browser
    Browser