Anatomy of the First Rib and Cervical Rib
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Questions and Answers

Which muscle depresses the ribs and therefore involves expiratory muscles?

  • Serratus posterior superior
  • Diaphragm
  • Intercostal nerve
  • Serratus posterior inferior (correct)

    • Where is the sternal angle of Louis located?

  • At the C7 spinous process
  • At the xiphisternal joint (correct)
  • Opposite the T9 vertebral body
  • Beside the 2nd rib and costal cartilage

    • Which structure marks the apex beat of the heart?

  • Axillary fold
  • Subcostal angle
  • 4th intercostal space (ICS) in males (correct)
  • Sternal notch

    • What is the location of the inferior border of the lungs?

    <p>10th rib adjacent to the vertebral column</p> Signup and view all the answers

    Which structure meets with the oblique fissure at the midaxillary line?

    <p>Horizontal fissure</p> Signup and view all the answers

    What structures do the oblique fissure of the lungs extend between?

    <p>Spine of scapula and 6th rib posteriorly</p> Signup and view all the answers

    Where is the trachea located in relation to the sternal notch?

    <p>Right of midline</p> Signup and view all the answers

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