Anatomy of the Clavicle (Collarbone)
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Questions and Answers

What is the primary function of the clavicle?

  • To support the shoulder and allow for a wide range of motion (correct)
  • To protect the heart
  • To form the elbow joint
  • To connect the arm to the leg
  • What type of bone tissue is the clavicle composed of?

  • Only cancellous bone
  • Only compact bone
  • Cartilage
  • Compact and cancellous bone (correct)
  • At what stage of fetal development does the clavicle begin to ossify?

  • Around 15-18 weeks
  • Around 10-12 weeks
  • Around 5-6 weeks (correct)
  • Around 20-24 weeks
  • What is the common condition characterized by the destruction of clavicle bone tissue?

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

    What is the typical shape of the clavicle?

    <p>S-shaped</p> Signup and view all the answers

    At what age does the clavicle fully ossify?

    <p>Around 21-25 years</p> Signup and view all the answers

    Study Notes

    Anatomy

    • The clavicle, also known as the collarbone, is a long, slender bone located between the shoulder blade (scapula) and the breastbone (sternum).
    • It is a paired bone, with one clavicle on each side of the body.

    Function

    • The clavicle serves as a connection between the arm and the body, providing a point of attachment for muscles and ligaments.
    • It helps to support the shoulder and allows for a wide range of motion.

    Structure

    • The clavicle is curved, with an S-shaped appearance.
    • It has two ends: the sternal end (which articulates with the sternum) and the acromial end (which articulates with the scapula).
    • The clavicle is composed of compact and cancellous bone tissue.

    Development

    • The clavicle is the first long bone to ossify (harden) during fetal development, beginning around 5-6 weeks.
    • It is also one of the last bones to fully ossify, which occurs around 21-25 years of age.

    Clinical Significance

    • Fractures of the clavicle are common, particularly in children and young adults.
    • The clavicle is also susceptible to osteolysis, a condition characterized by the destruction of bone tissue.
    • In some cases, the clavicle may be surgically removed or repaired to treat certain conditions or injuries.

    Anatomy of the Clavicle

    • The clavicle, or collarbone, is a long, slender bone located between the scapula (shoulder blade) and sternum (breastbone).
    • It is a paired bone, with one on each side of the body.

    Function of the Clavicle

    • The clavicle serves as a connection between the arm and the body.
    • It provides a point of attachment for muscles and ligaments.
    • It helps to support the shoulder and allows for a wide range of motion.

    Structure of the Clavicle

    • The clavicle has an S-shaped appearance due to its curvature.
    • It has two ends: the sternal end (articulates with the sternum) and the acromial end (articulates with the scapula).
    • The clavicle is composed of compact and cancellous bone tissue.

    Development of the Clavicle

    • The clavicle is the first long bone to ossify (harden) during fetal development, beginning around 5-6 weeks.
    • It is also one of the last bones to fully ossify, which occurs around 21-25 years of age.

    Clinical Significance of the Clavicle

    • Fractures of the clavicle are common, particularly in children and young adults.
    • The clavicle is susceptible to osteolysis, a condition characterized by the destruction of bone tissue.
    • In some cases, the clavicle may be surgically removed or repaired to treat certain conditions or injuries.

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    Description

    Learn about the clavicle bone, its location, function, and structure. Understand its role in connecting the arm to the body and supporting the shoulder.

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