Cartilage Quiz (BMS Learning Outcomes)
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Questions and Answers

What is the primary type of cartilage found in infants and fetuses?

  • Hyaline cartilage (correct)
  • Adipose cartilage
  • Elastic cartilage
  • Fibrous cartilage

    • Which of the following best describes the structure of fibrous cartilage?

  • Smooth and glassy with small chondrocyte groups
  • Thin and flexible, allowing for easy bending
  • Dense and touch, containing thick bundles of collagen fibers (correct)
  • Soft and pliable with a high water content

    • Identify a location where elastic cartilage can be found.

  • Intervertebral discs
  • Knee joint
  • Pinna of the ear (correct)
  • Costal cartilages

    • What is a common function of cartilage in the human body?

    <p>Facilitate movement at joints with flexibility (A)</p> Signup and view all the answers

    Where is hyaline cartilage typically located in the body?

    <p>Articulating surfaces of bone (C)</p> Signup and view all the answers

    Which feature is NOT characteristic of hyaline cartilage?

    <p>Thick bundles of collagen fibers (A)</p> Signup and view all the answers

    What role does cartilage play during skeletal development in embryos?

    <p>Acts as a model for future bones (D)</p> Signup and view all the answers

    What is a primary characteristic of elastic cartilage compared to other types?

    <p>It has significant elasticity due to its matrix. (B)</p> Signup and view all the answers

    Flashcards

    Cartilage

    A type of connective tissue made of specialized cells called chondrocytes and a firm, rubbery matrix.

    Hyaline cartilage

    The most common type of cartilage. It's smooth, glassy, and found in many places where flexibility is needed.

    Where is hyaline cartilage found?

    Hyaline cartilage is found covering the ends of bones in joints, allowing for smooth movement.

    How does hyaline cartilage help with breathing?

    Hyaline cartilage forms the flexible framework for the rib cage, connecting the ribs to the breastbone (sternum).

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    Fibrous cartilage

    A strong, dense type of cartilage that can withstand significant stress.

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    What is the role of fibrous cartilage in the spine?

    Fibrous cartilage acts as a shock absorber in the intervertebral discs, cushioning the vertebrae and preventing them from grinding together.

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    Elastic cartilage

    A flexible cartilage type that can bend and spring back to its original shape.

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    Why is elastic cartilage important for the ear?

    Elastic cartilage makes up the outer ear (pinna), allowing it to fold and move.

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    Study Notes

    Cartilage Composition and Development

    • Cartilage is a specialized connective tissue composed of chondrocytes (cells) embedded in a solid extracellular matrix.
    • The matrix consists of ground substance and fibers, primarily collagen fibers, giving varying degrees of flexibility and strength to the different cartilage types.

    Types of Cartilage and Locations

    Hyaline Cartilage

    • Structure: Small groups of chondrocytes in a smooth, solid, glassy matrix, appearing bluish-white.
    • Location: Found on articulating surfaces of bones, costal cartilages (connecting ribs to sternum), and the cartilages of the larynx, trachea, and bronchi.
    • Function: Provides flexible support and reduces friction in joints. It is the main type in infants and fetuses, forming part of the temporary skeleton.

    Fibrous Cartilage

    • Structure: Dense, tough, and slightly flexible tissue. Chondrocytes are separated by thick, densely packed collagen fibers.
    • Location: Found in intervertebral discs, knee and jaw joints, the surrounding rim of bony sockets (hips and shoulders), and the pubic symphysis.
    • Function: Provides strength and support where high stress and pressure occur.

    Elastic Cartilage

    • Structure: Feature: Has elastic fibers within the matrix, providing flexibility.
    • Location: Found in the pinna of the ear, epiglottis, and parts of blood vessel walls.
    • Function: Provides flexibility and maintains shape.

    General Function of Cartilage Types

    • Cartilage forms a significant portion of the temporary embryonic/fetal skeleton.
    • Often serves as a template or model for the development of bones in the skeleton.
    • Its presence on joint surfaces allows flexibility and reduces friction.

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    Description

    Explore the composition and development of cartilage, a vital connective tissue. Learn about the different types of cartilage, including hyaline and fibrous cartilage, their structures, locations in the body, and functions.

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