Cartilage Cells and Types
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Cartilage Cells and Types

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Questions and Answers

Which cell type is found in the inner cellular layer of the perichondrium and is responsible for forming cartilage?

  • Chondrogenic cell
  • Chondroblast (correct)
  • Chondrocyte
  • None of the above
  • What is the primary origin of chondrocytes?

  • Chondrogenic cells
  • Mesenchymal stem cells
  • Epithelial cells
  • Chondroblasts (correct)
  • Which of the following characteristics describes chondrocytes?

  • Flat cell shape with a pale oval nucleus
  • Oval cell shape with a dark central round nucleus (correct)
  • Rich in ribosomes and more electron dense
  • Flat morphology and dark basophilic cytoplasm
  • Which statement accurately reflects the morphology of a chondrogenic cell?

    <p>They are flat cells with a flat nucleus</p> Signup and view all the answers

    What is the function of chondroblasts in the perichondrium?

    <p>They differentiate into chondrocytes and form cartilage</p> Signup and view all the answers

    What is primarily produced by chondroblasts during the formation process?

    <p>Type II collagen</p> Signup and view all the answers

    Which of the following best describes the role of chondroblasts?

    <p>They synthesize and secrete extracellular matrix components.</p> Signup and view all the answers

    What type of collagen do chondroblasts form during cartilage development?

    <p>Type II collagen</p> Signup and view all the answers

    Which of the following statements about chondroblasts is NOT true?

    <p>Chondroblasts primarily form type I collagen.</p> Signup and view all the answers

    During which process do chondroblasts contribute to the formation of collagen fibers?

    <p>Cartilage formation</p> Signup and view all the answers

    What is a characteristic function of matrix formation in growth?

    <p>Transformation of chondrocytes</p> Signup and view all the answers

    Which statement best describes interstitial growth?

    <p>It involves the expansion from a central point.</p> Signup and view all the answers

    What is the role of chondrocytes in the context of matrix?

    <p>To generate and maintain the matrix</p> Signup and view all the answers

    How does the matrix influence chondrocytes during growth?

    <p>It promotes their transformation into specialized cells.</p> Signup and view all the answers

    Which of the following accurately describes the process of transformation in chondrocytes?

    <p>It is facilitated by the presence of matrix.</p> Signup and view all the answers

    Which of the following is a characteristic of yellow elastic cartilage?

    <p>It is flexible and appears yellow in fresh sections.</p> Signup and view all the answers

    Which structure does NOT contain Type II collagen fibers?

    <p>White fibrocartilage</p> Signup and view all the answers

    Which joint primarily allows for a limited range of movement, aiding in shock absorption and stability in the pelvis?

    <p>Symphysis pubis</p> Signup and view all the answers

    Where can yellow elastic cartilage be found?

    <p>In the ear pinna</p> Signup and view all the answers

    Which of the following structures is specifically designed for allowing rotation and significant movement?

    <p>Mandibular joint</p> Signup and view all the answers

    What distinguishes white fibrocartilage from other cartilage types?

    <p>It contains rows of chondrocytes in its matrix.</p> Signup and view all the answers

    Which joint is located between adjacent vertebrae and serves as a crucial component of the spinal column?

    <p>Intervertebral disc</p> Signup and view all the answers

    Which of the following statements about the structure of yellow elastic cartilage is false?

    <p>It contains no perichondrium.</p> Signup and view all the answers

    Which of the following joints is a cartilaginous joint that primarily allows for slight movement?

    <p>Symphysis pubis</p> Signup and view all the answers

    Which structure helps to cushion the joints between vertebrae and provides elasticity to the spinal column?

    <p>Intervertebral disc</p> Signup and view all the answers

    Study Notes

    Cartilage Cells

    • Chondrogenic Cells

      • Originate from undifferentiated mesenchymal cells (UMCs)
      • Found in the inner cellular layer of the perichondrium
      • Differentiate into chondroblasts
    • Chondroblasts

      • Originate from UMCs or chondrogenic cells
      • Found in the inner cellular layer of the perichondrium
      • Function:
        • Form cartilage
        • Form type II collagen fibers
        • Form matrix
        • Transform into chondrocytes when surrounded by matrix
    • Chondrocytes

      • Originate from chondroblasts
      • Found throughout cartilage, either singly or in groups
      • Function:
        • Continuously form matrix
        • Responsible for interstitial growth
        • Produce type II collagen fibers in the matrix

    Cartilage Types

    • Hyaline Cartilage

      • Flexible type of cartilage
      • Appears yellow in fresh sections
      • Structure: Similar to hyaline cartilage with the addition of elastic fibers in the matrix.
      • Sites:
        • Costal cartilage
        • Articular cartilage
        • Trachea and bronchi
    • Elastic Cartilage

      • Flexible type of cartilage
      • Structure: Same as hyaline cartilage but with more elastic fibers in the matrix
      • Sites:
        • Ear pinna
        • External auditory meatus
        • Eustachian tube
        • Epiglottis
    • Fibrocartilage

      • Rigid type of cartilage
      • Intermediate between cartilage and white fibrous connective tissue
      • Structure:
        • Lacks a perichondrium
        • Matrix contains collagen type I with rows of chondrocytes in between
      • Sites:
        • Symphysis pubis
        • Intervertebral disc
        • Mandibular joint

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    Description

    Explore the various types of cartilage cells, including chondrogenic cells, chondroblasts, and chondrocytes. This quiz covers the origin, functions, and structural characteristics of hyaline cartilage and other cartilage types. Test your understanding of cartilage biology in this engaging quiz!

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