Osteology of the Thoracic Cavity YBOD200 Ms AT Sebelebele
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Questions and Answers

What is the function of the thoracic cavity?

  • Temperature regulation
  • Digestion
  • Protection of lungs, heart, and great vessels (correct)
  • Visual perception
  • Where is the sternal angle (manubriosternal joint) located?

  • T3-T4
  • T1-T2
  • T4-T5 (correct)
  • T2-T3
  • Which ribs are considered 'floating ribs'?

  • Ribs 8-10
  • Ribs 1-7
  • Ribs 2-6
  • Ribs 11 and 12 (correct)
  • What is the function of the xiphoid process?

    <p>Inferior attachment for rib 7 costal cartilage</p> Signup and view all the answers

    How are true ribs different from false ribs?

    <p>Their articulation with the sternum</p> Signup and view all the answers

    Which thoracic vertebrae articulate with the ribs?

    <p>T5-T9</p> Signup and view all the answers

    What is the distinct feature found on the superior surface of Rib 1?

    <p>Scalene tubercle</p> Signup and view all the answers

    Where does the serratus anterior muscle originate from?

    <p>Scalene tubercle</p> Signup and view all the answers

    Which rib has a head that articulates with the body of T1 vertebra?

    <p>Rib 2</p> Signup and view all the answers

    What is located between the head and tubercle of a typical rib?

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

    Where is the intercostal neurovascular bundle found in a typical rib?

    <p>Inferior margin of internal surface of the shaft</p> Signup and view all the answers

    What articulates with the Inferior costal facet on a vertebra above in typical ribs?

    <p>Superior facet on corresponding vertebra</p> Signup and view all the answers

    Which thoracic vertebrae has a heart-shaped vertebral body?

    <p>T8</p> Signup and view all the answers

    Which ribs articulate with the vertebral column with only one facet to T10?

    <p>Rib 10</p> Signup and view all the answers

    Which thoracic vertebrae have full superior costal facets?

    <p>T1; T10-12</p> Signup and view all the answers

    Which thoracic vertebrae lack an inferior costal facet?

    <p>T1; T10-12</p> Signup and view all the answers

    Which thoracic vertebra articulates with the 1st rib as the only one without demifacets?

    <p>T1</p> Signup and view all the answers

    Which ribs lack tubercles and have a short, slightly curved structure?

    <p>Rib 11 and 12</p> Signup and view all the answers

    What type of joint is the Costovertebral joint?

    <p>Synovial plane joint</p> Signup and view all the answers

    Which ligament attaches the crest to the intervertebral disc within the Costovertebral joint?

    <p>Intra-articular ligament</p> Signup and view all the answers

    What type of joint is the Sternocostal joint for ribs 2-7?

    <p>Synovial plane joint</p> Signup and view all the answers

    What type of joint is the Costochondral joint?

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

    Which movement of the thoracic wall is responsible for altering the anteroposterior dimensions of the thoracic cavity?

    <p>Pump handle movement</p> Signup and view all the answers

    What does the Interchondral joint anchor to the sternum?

    <p>Ribs 8-10</p> Signup and view all the answers

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